42875656452520 has 32 divisors (see below), whose sum is σ = 96471230276520. Its totient is φ = 17150084224000.

The previous prime is 42875656452487. The next prime is 42875656452521. The reversal of 42875656452520 is 2525465657824.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24404726332996 + 18470930119524 = 4940114^2 + 4297782^2 .

It is a super-2 number, since 2×42875656452520² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42875656452521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1645117 + ... + 9405196.

Almost surely, 2^{42875656452520} is an apocalyptic number.

42875656452520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42875656452520 is an abundant number, since it is smaller than the sum of its proper divisors (53595573824000).

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

42875656452520 is a wasteful number, since it uses less digits than its factorization.

42875656452520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11147325 (or 11147321 counting only the distinct ones).

The product of its (nonzero) digits is 161280000, while the sum is 61.

The spelling of 42875656452520 in words is "forty-two trillion, eight hundred seventy-five billion, six hundred fifty-six million, four hundred fifty-two thousand, five hundred twenty".