642315527001 has 10 divisors (see below), whose sum is σ = 959508379962. Its totient is φ = 428210351280.

The previous prime is 642315526991. The next prime is 642315527003. The reversal of 642315527001 is 100725513246.

642315527001 is a `hidden beast` number, since 6 + 4 + 2 + 31 + 552 + 70 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 575079555600 + 67235971401 = 758340^2 + 259299^2 .

It is not a de Polignac number, because 642315527001 - 2⁵ = 642315526969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642315527003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3964910580 + ... + 3964910741.

Almost surely, 2^642315527001 is an apocalyptic number.

It is an amenable number.

642315527001 is a deficient number, since it is larger than the sum of its proper divisors (317192852961).

642315527001 is an equidigital number, since it uses as much as digits as its factorization.

642315527001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929821333 (or 7929821324 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 642315527001 in words is "six hundred forty-two billion, three hundred fifteen million, five hundred twenty-seven thousand, one".