642673015276716 has 96 divisors (see below), whose sum is σ = 1670517600998400. Its totient is φ = 213668374328640.

The previous prime is 642673015276711. The next prime is 642673015276717. The reversal of 642673015276716 is 617672510376246.

642673015276716 is a `hidden beast` number, since 6 + 4 + 2 + 6 + 7 + 30 + 1 + 527 + 6 + 71 + 6 = 666.

It is a super-2 number, since 2×642673015276716² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (642673015276711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83328031 + ... + 90713321.

It is an arithmetic number, because the mean of its divisors is an integer number (17401225010400).

Almost surely, 2^{642673015276716} is an apocalyptic number.

It is an amenable number.

642673015276716 is an abundant number, since it is smaller than the sum of its proper divisors (1027844585721684).

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

642673015276716 is a wasteful number, since it uses less digits than its factorization.

642673015276716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7387396 (or 7387388 counting only the distinct ones).

The product of its (nonzero) digits is 106686720, while the sum is 63.

The spelling of 642673015276716 in words is "six hundred forty-two trillion, six hundred seventy-three billion, fifteen million, two hundred seventy-six thousand, seven hundred sixteen".