42457133892 has 12 divisors (see below), whose sum is σ = 99066645776. Its totient is φ = 14152377960.

The previous prime is 42457133861. The next prime is 42457133897. The reversal of 42457133892 is 29833175424.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (42457133897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1769047234 + ... + 1769047257.

Almost surely, 2^42457133892 is an apocalyptic number.

It is an amenable number.

42457133892 is an abundant number, since it is smaller than the sum of its proper divisors (56609511884).

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

42457133892 is a wasteful number, since it uses less digits than its factorization.

42457133892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538094498 (or 3538094496 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 42457133892 in words is "forty-two billion, four hundred fifty-seven million, one hundred thirty-three thousand, eight hundred ninety-two".