42897819492 has 72 divisors (see below), whose sum is σ = 118323878400. Its totient is φ = 12996054720.

The previous prime is 42897819457. The next prime is 42897819509. The reversal of 42897819492 is 29491879824.

42897819492 is a `hidden beast` number, since 42 + 8 + 97 + 8 + 19 + 492 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1889118 + ... + 1911690.

It is an arithmetic number, because the mean of its divisors is an integer number (1643387200).

Almost surely, 2^42897819492 is an apocalyptic number.

It is an amenable number.

42897819492 is an abundant number, since it is smaller than the sum of its proper divisors (75426058908).

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

42897819492 is a wasteful number, since it uses less digits than its factorization.

42897819492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27393 (or 27388 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The spelling of 42897819492 in words is "forty-two billion, eight hundred ninety-seven million, eight hundred nineteen thousand, four hundred ninety-two".