64650412256492 has 6 divisors (see below), whose sum is σ = 113138221448868. Its totient is φ = 32325206128244.

The previous prime is 64650412256491. The next prime is 64650412256527. The reversal of 64650412256492 is 29465221405646.

It is a super-2 number, since 2×64650412256492² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64650412256491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8081301532058 + ... + 8081301532065.

It is an arithmetic number, because the mean of its divisors is an integer number (18856370241478).

Almost surely, 2^{64650412256492} is an apocalyptic number.

It is an amenable number.

64650412256492 is a deficient number, since it is larger than the sum of its proper divisors (48487809192376).

64650412256492 is a wasteful number, since it uses less digits than its factorization.

64650412256492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16162603064127 (or 16162603064125 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 56.

The spelling of 64650412256492 in words is "sixty-four trillion, six hundred fifty billion, four hundred twelve million, two hundred fifty-six thousand, four hundred ninety-two".