7656040344 has 32 divisors (see below), whose sum is σ = 19143558720. Its totient is φ = 2551552416.

The previous prime is 7656040319. The next prime is 7656040363. The reversal of 7656040344 is 4430406567.

It is a happy number.

It is a super-2 number, since 2×7656040344² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 123159 + ... + 174585.

It is an arithmetic number, because the mean of its divisors is an integer number (598236210).

Almost surely, 2^7656040344 is an apocalyptic number.

It is an amenable number.

7656040344 is an abundant number, since it is smaller than the sum of its proper divisors (11487518376).

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

7656040344 is a wasteful number, since it uses less digits than its factorization.

7656040344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57639 (or 57635 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The square root of 7656040344 is about 87498.8019575125. The cubic root of 7656040344 is about 1970.9158001644.

The spelling of 7656040344 in words is "seven billion, six hundred fifty-six million, forty thousand, three hundred forty-four".