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42739618488 = 23372374353431
BaseRepresentation
bin100111110011011110…
…101101001010111000
311002022121010120112220
4213303132231022320
51200012320242423
631345002204040
73042061522500
oct476336551270
9132277116486
1042739618488
1117142444a56
1283494b3620
13405182aca8
1420d6394a00
1511a22959e3
hex9f37ad2b8

42739618488 has 384 divisors, whose sum is σ = 133395102720. Its totient is φ = 11359595520.

The previous prime is 42739618459. The next prime is 42739618499. The reversal of 42739618488 is 88481693724.

It is a happy number.

It is a super-2 number, since 2×427396184882 (a number of 22 digits) contains 22 as substring.

Its product of digits (18579456) is a multiple of the sum of its prime divisors (576).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 99163633 + ... + 99164063.

It is an arithmetic number, because the mean of its divisors is an integer number (347383080).

Almost surely, 242739618488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42739618488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66697551360).

42739618488 is an abundant number, since it is smaller than the sum of its proper divisors (90655484232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42739618488 is a wasteful number, since it uses less digits than its factorization.

42739618488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 576 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 60.

The spelling of 42739618488 in words is "forty-two billion, seven hundred thirty-nine million, six hundred eighteen thousand, four hundred eighty-eight".