639919059970310 has 16 divisors (see below), whose sum is σ = 1151855670835296. Its totient is φ = 255967321123968.

The previous prime is 639919059970259. The next prime is 639919059970357. The reversal of 639919059970310 is 13079950919936.

It is a super-2 number, since 2×639919059970310² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28882547 + ... + 45978686.

It is an arithmetic number, because the mean of its divisors is an integer number (71990979427206).

Almost surely, 2^{639919059970310} is an apocalyptic number.

639919059970310 is a deficient number, since it is larger than the sum of its proper divisors (511936610864986).

639919059970310 is a wasteful number, since it uses less digits than its factorization.

639919059970310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75716047.

The product of its (nonzero) digits is 111602610, while the sum is 71.

The spelling of 639919059970310 in words is "six hundred thirty-nine trillion, nine hundred nineteen billion, fifty-nine million, nine hundred seventy thousand, three hundred ten".