42875656436778 has 32 divisors (see below), whose sum is σ = 93595331837952. Its totient is φ = 12985894681200.

The previous prime is 42875656436731. The next prime is 42875656436827. The reversal of 42875656436778 is 87763465657824.

It is a happy number.

It is a super-2 number, since 2×42875656436778² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168083626 + ... + 168338517.

It is an arithmetic number, because the mean of its divisors is an integer number (2924854119936).

Almost surely, 2^{42875656436778} is an apocalyptic number.

42875656436778 is an abundant number, since it is smaller than the sum of its proper divisors (50719675401174).

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

42875656436778 is a wasteful number, since it uses less digits than its factorization.

42875656436778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336424090.

The product of its digits is 11379916800, while the sum is 78.

The spelling of 42875656436778 in words is "forty-two trillion, eight hundred seventy-five billion, six hundred fifty-six million, four hundred thirty-six thousand, seven hundred seventy-eight".