7389400711644 has 144 divisors (see below), whose sum is σ = 21954336768000. Its totient is φ = 2094632828064.

The previous prime is 7389400711633. The next prime is 7389400711747. The reversal of 7389400711644 is 4461170049837.

It is a happy number.

7389400711644 is a `hidden beast` number, since 7 + 3 + 8 + 9 + 400 + 71 + 164 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 787824 + ... + 3924215.

It is an arithmetic number, because the mean of its divisors is an integer number (152460672000).

Almost surely, 2^{7389400711644} is an apocalyptic number.

It is an amenable number.

7389400711644 is an abundant number, since it is smaller than the sum of its proper divisors (14564936056356).

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

7389400711644 is a wasteful number, since it uses less digits than its factorization.

7389400711644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712197 (or 4712178 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 7389400711644 in words is "seven trillion, three hundred eighty-nine billion, four hundred million, seven hundred eleven thousand, six hundred forty-four".