42656571078 has 32 divisors (see below), whose sum is σ = 93171174912. Its totient is φ = 12912026400.

The previous prime is 42656571073. The next prime is 42656571107. The reversal of 42656571078 is 87017565624.

It is a super-2 number, since 2×42656571078² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42656571078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42656571073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294601 + ... + 414852.

It is an arithmetic number, because the mean of its divisors is an integer number (2911599216).

Almost surely, 2^42656571078 is an apocalyptic number.

42656571078 is an abundant number, since it is smaller than the sum of its proper divisors (50514603834).

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

42656571078 is a wasteful number, since it uses less digits than its factorization.

42656571078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710380.

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 42656571078 in words is "forty-two billion, six hundred fifty-six million, five hundred seventy-one thousand, seventy-eight".