64770920302 has 12 divisors (see below), whose sum is σ = 106791724368. Its totient is φ = 29441327300.

The previous prime is 64770920299. The next prime is 64770920309. The reversal of 64770920302 is 20302907746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64770920309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133823974 + ... + 133824457.

It is an arithmetic number, because the mean of its divisors is an integer number (8899310364).

Almost surely, 2^64770920302 is an apocalyptic number.

64770920302 is a deficient number, since it is larger than the sum of its proper divisors (42020804066).

64770920302 is a wasteful number, since it uses less digits than its factorization.

64770920302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267648455 (or 267648444 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 64770920302 in words is "sixty-four billion, seven hundred seventy million, nine hundred twenty thousand, three hundred two".