642680761482 has 32 divisors (see below), whose sum is σ = 1431908444160. Its totient is φ = 213667574400.

The previous prime is 642680761421. The next prime is 642680761549. The reversal of 642680761482 is 284167086246.

It is a happy number.

642680761482 is a `hidden beast` number, since 6 + 4 + 26 + 80 + 7 + 61 + 482 = 666.

It is a super-2 number, since 2×642680761482² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 15516519 + ... + 15557882.

It is an arithmetic number, because the mean of its divisors is an integer number (44747138880).

Almost surely, 2^642680761482 is an apocalyptic number.

642680761482 is an abundant number, since it is smaller than the sum of its proper divisors (789227682678).

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

642680761482 is a wasteful number, since it uses less digits than its factorization.

642680761482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31074795 (or 31074789 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 642680761482 in words is "six hundred forty-two billion, six hundred eighty million, seven hundred sixty-one thousand, four hundred eighty-two".