42899108772520 has 512 divisors, whose sum is σ = 134330535198720. Its totient is φ = 11899658833920.

The previous prime is 42899108772511. The next prime is 42899108772521. The reversal of 42899108772520 is 2527780199824.

It is a super-2 number, since 2×42899108772520² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42899108772521) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 125915842 + ... + 126256078.

It is an arithmetic number, because the mean of its divisors is an integer number (262364326560).

Almost surely, 2^{42899108772520} is an apocalyptic number.

42899108772520 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 42899108772520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67165267599360).

42899108772520 is an abundant number, since it is smaller than the sum of its proper divisors (91431426426200).

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

42899108772520 is a wasteful number, since it uses less digits than its factorization.

42899108772520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340393 (or 340389 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 64.

The spelling of 42899108772520 in words is "forty-two trillion, eight hundred ninety-nine billion, one hundred eight million, seven hundred seventy-two thousand, five hundred twenty".