6923311640 has 64 divisors (see below), whose sum is σ = 17979140160. Its totient is φ = 2350195200.

The previous prime is 6923311597. The next prime is 6923311651. The reversal of 6923311640 is 461133296.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 6923311640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94127 + ... + 150686.

It is an arithmetic number, because the mean of its divisors is an integer number (280924065).

Almost surely, 2^6923311640 is an apocalyptic number.

It is an amenable number.

6923311640 is an abundant number, since it is smaller than the sum of its proper divisors (11055828520).

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

6923311640 is a wasteful number, since it uses less digits than its factorization.

6923311640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244932 (or 244928 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 6923311640 is about 83206.4398949985. The cubic root of 6923311640 is about 1905.9198227173.

The spelling of 6923311640 in words is "six billion, nine hundred twenty-three million, three hundred eleven thousand, six hundred forty".