42315646528 has 14 divisors (see below), whose sum is σ = 83970111206. Its totient is φ = 21157823232.

The previous prime is 42315646517. The next prime is 42315646589. The reversal of 42315646528 is 82564651324.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36876289024 + 5439357504 = 192032^2 + 73752^2 .

It is a super-2 number, since 2×42315646528² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330590925 + ... + 330591052.

Almost surely, 2^42315646528 is an apocalyptic number.

It is an amenable number.

42315646528 is a deficient number, since it is larger than the sum of its proper divisors (41654464678).

42315646528 is an equidigital number, since it uses as much as digits as its factorization.

42315646528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661181989 (or 661181979 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 46.

The spelling of 42315646528 in words is "forty-two billion, three hundred fifteen million, six hundred forty-six thousand, five hundred twenty-eight".