1973664504 has 96 divisors (see below), whose sum is σ = 6468340320. Its totient is φ = 530731008.

The previous prime is 1973664503. The next prime is 1973664547. The reversal of 1973664504 is 4054663791.

1973664504 is a `hidden beast` number, since 19 + 73 + 6 + 64 + 504 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1973664504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973664503) 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 23 ways as a sum of consecutive naturals, for example, 106609 + ... + 123744.

It is an arithmetic number, because the mean of its divisors is an integer number (67378545).

Almost surely, 2^1973664504 is an apocalyptic number.

1973664504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1973664504 is an abundant number, since it is smaller than the sum of its proper divisors (4494675816).

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

1973664504 is a wasteful number, since it uses less digits than its factorization.

1973664504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230389 (or 230382 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 1973664504 is about 44425.9440417421. The cubic root of 1973664504 is about 1254.3664901041.

The spelling of 1973664504 in words is "one billion, nine hundred seventy-three million, six hundred sixty-four thousand, five hundred four".