42056426456 has 16 divisors (see below), whose sum is σ = 86024508840. Its totient is φ = 19116557440.

The previous prime is 42056426449. The next prime is 42056426501. The reversal of 42056426456 is 65462465024.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238956881 + ... + 238957056.

Almost surely, 2^42056426456 is an apocalyptic number.

It is an amenable number.

42056426456 is an abundant number, since it is smaller than the sum of its proper divisors (43968082384).

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

42056426456 is a wasteful number, since it uses less digits than its factorization.

42056426456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477913954 (or 477913950 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 42056426456 in words is "forty-two billion, fifty-six million, four hundred twenty-six thousand, four hundred fifty-six".