42739753680 has 1280 divisors, whose sum is σ = 180388454400. Its totient is φ = 9311791104.

The previous prime is 42739753673. The next prime is 42739753687. The reversal of 42739753680 is 8635793724.

42739753680 is a `hidden beast` number, since 4 + 27 + 3 + 9 + 7 + 536 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (42739753673) and next prime (42739753687).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42739753687) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 993947739 + ... + 993947781.

It is an arithmetic number, because the mean of its divisors is an integer number (140928480).

Almost surely, 2^42739753680 is an apocalyptic number.

42739753680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42739753680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90194227200).

42739753680 is an abundant number, since it is smaller than the sum of its proper divisors (137648700720).

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

42739753680 is a wasteful number, since it uses less digits than its factorization.

42739753680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 42739753680 in words is "forty-two billion, seven hundred thirty-nine million, seven hundred fifty-three thousand, six hundred eighty".