73890945464 has 32 divisors (see below), whose sum is σ = 158652587520. Its totient is φ = 31604578656.

The previous prime is 73890945463. The next prime is 73890945523. The reversal of 73890945464 is 46454909837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73890945461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1283444 + ... + 1339779.

It is an arithmetic number, because the mean of its divisors is an integer number (4957893360).

Almost surely, 2^73890945464 is an apocalyptic number.

It is an amenable number.

73890945464 is an abundant number, since it is smaller than the sum of its proper divisors (84761642056).

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

73890945464 is a wasteful number, since it uses less digits than its factorization.

73890945464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623739 (or 2623735 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 73890945464 in words is "seventy-three billion, eight hundred ninety million, nine hundred forty-five thousand, four hundred sixty-four".