64740296730 has 32 divisors (see below), whose sum is σ = 162132223104. Its totient is φ = 16513466816.

The previous prime is 64740296711. The next prime is 64740296833. The reversal of 64740296730 is 3769204746.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64740296730.

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, 46912569 + ... + 46913948.

It is an arithmetic number, because the mean of its divisors is an integer number (5066631972).

Almost surely, 2^64740296730 is an apocalyptic number.

64740296730 is an abundant number, since it is smaller than the sum of its proper divisors (97391926374).

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

64740296730 is a wasteful number, since it uses less digits than its factorization.

64740296730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93826550.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 64740296730 in words is "sixty-four billion, seven hundred forty million, two hundred ninety-six thousand, seven hundred thirty".