64631373074212 has 48 divisors (see below), whose sum is σ = 129616839031680. Its totient is φ = 27623291496192.

The previous prime is 64631373074179. The next prime is 64631373074221. The reversal of 64631373074212 is 21247037313646.

It is a happy number.

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, 188750463 + ... + 189092569.

It is an arithmetic number, because the mean of its divisors is an integer number (2700350813160).

Almost surely, 2^{64631373074212} is an apocalyptic number.

It is an amenable number.

64631373074212 is an abundant number, since it is smaller than the sum of its proper divisors (64985465957468).

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

64631373074212 is a wasteful number, since it uses less digits than its factorization.

64631373074212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360580 (or 360578 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 49.

The spelling of 64631373074212 in words is "sixty-four trillion, six hundred thirty-one billion, three hundred seventy-three million, seventy-four thousand, two hundred twelve".