64910902404 has 48 divisors (see below), whose sum is σ = 158699882880. Its totient is φ = 20610332160.

The previous prime is 64910902403. The next prime is 64910902421. The reversal of 64910902404 is 40420901946.

It is a super-2 number, since 2×64910902404² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64910902403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421419 + ... + 554450.

It is an arithmetic number, because the mean of its divisors is an integer number (3306247560).

Almost surely, 2^64910902404 is an apocalyptic number.

It is an amenable number.

64910902404 is an abundant number, since it is smaller than the sum of its proper divisors (93788980476).

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

64910902404 is a wasteful number, since it uses less digits than its factorization.

64910902404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976140 (or 976138 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 64910902404 in words is "sixty-four billion, nine hundred ten million, nine hundred two thousand, four hundred four".