7164388728945 has 48 divisors (see below), whose sum is σ = 14681703029760. Its totient is φ = 3162212952192.

The previous prime is 7164388728941. The next prime is 7164388729027. The reversal of 7164388728945 is 5498278834617.

It is a happy number.

7164388728945 is a `hidden beast` number, since 7 + 1 + 6 + 438 + 8 + 72 + 89 + 45 = 666.

It is not a de Polignac number, because 7164388728945 - 2² = 7164388728941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7164388728941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 392130369 + ... + 392148638.

It is an arithmetic number, because the mean of its divisors is an integer number (305868813120).

Almost surely, 2^{7164388728945} is an apocalyptic number.

It is an amenable number.

7164388728945 is an abundant number, since it is smaller than the sum of its proper divisors (7517314300815).

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

7164388728945 is a wasteful number, since it uses less digits than its factorization.

7164388728945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784279054 (or 784279051 counting only the distinct ones).

The product of its digits is 650280960, while the sum is 72.

The spelling of 7164388728945 in words is "seven trillion, one hundred sixty-four billion, three hundred eighty-eight million, seven hundred twenty-eight thousand, nine hundred forty-five".