7131578007904 has 96 divisors (see below), whose sum is σ = 16086139707456. Its totient is φ = 3048764006400.

The previous prime is 7131578007901. The next prime is 7131578007937. The reversal of 7131578007904 is 4097008751317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7131578007901) 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, 149620044 + ... + 149667700.

It is an arithmetic number, because the mean of its divisors is an integer number (167563955286).

Almost surely, 2^{7131578007904} is an apocalyptic number.

It is an amenable number.

7131578007904 is an abundant number, since it is smaller than the sum of its proper divisors (8954561699552).

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

7131578007904 is a wasteful number, since it uses less digits than its factorization.

7131578007904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49328 (or 49320 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 52.

The spelling of 7131578007904 in words is "seven trillion, one hundred thirty-one billion, five hundred seventy-eight million, seven thousand, nine hundred four".