64344012974 has 4 divisors (see below), whose sum is σ = 96516019464. Its totient is φ = 32172006486.

The previous prime is 64344012947. The next prime is 64344013007. The reversal of 64344012974 is 47921044346.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16086003242 + ... + 16086003245.

It is an arithmetic number, because the mean of its divisors is an integer number (24129004866).

Almost surely, 2^64344012974 is an apocalyptic number.

64344012974 is a deficient number, since it is larger than the sum of its proper divisors (32172006490).

64344012974 is a wasteful number, since it uses less digits than its factorization.

64344012974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32172006489.

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 64344012974 in words is "sixty-four billion, three hundred forty-four million, twelve thousand, nine hundred seventy-four".