639200063962 has 32 divisors (see below), whose sum is σ = 999533882880. Its totient is φ = 306241224960.

The previous prime is 639200063947. The next prime is 639200063987. The reversal of 639200063962 is 269360002936.

It is a super-2 number, since 2×639200063962² (a number of 24 digits) contains 22 as substring.

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, 2462238 + ... + 2709430.

It is an arithmetic number, because the mean of its divisors is an integer number (31235433840).

Almost surely, 2^639200063962 is an apocalyptic number.

639200063962 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

639200063962 is a deficient number, since it is larger than the sum of its proper divisors (360333818918).

639200063962 is a wasteful number, since it uses less digits than its factorization.

639200063962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247638.

The product of its (nonzero) digits is 629856, while the sum is 46.

The spelling of 639200063962 in words is "six hundred thirty-nine billion, two hundred million, sixty-three thousand, nine hundred sixty-two".