67864364920044 has 144 divisors (see below), whose sum is σ = 219092052082176. Its totient is φ = 17197178284800.

The previous prime is 67864364919979. The next prime is 67864364920073. The reversal of 67864364920044 is 44002946346876.

It is a happy number.

67864364920044 is a `hidden beast` number, since 6 + 7 + 8 + 64 + 364 + 9 + 200 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 298448472 + ... + 298675775.

It is an arithmetic number, because the mean of its divisors is an integer number (1521472583904).

Almost surely, 2^{67864364920044} is an apocalyptic number.

It is an amenable number.

67864364920044 is an abundant number, since it is smaller than the sum of its proper divisors (151227687162132).

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

67864364920044 is a wasteful number, since it uses less digits than its factorization.

67864364920044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597124316 (or 597124311 counting only the distinct ones).

The product of its (nonzero) digits is 167215104, while the sum is 63.

The spelling of 67864364920044 in words is "sixty-seven trillion, eight hundred sixty-four billion, three hundred sixty-four million, nine hundred twenty thousand, forty-four".