7664911427340 has 144 divisors (see below), whose sum is σ = 25159670984448. Its totient is φ = 1955107813824.

The previous prime is 7664911427339. The next prime is 7664911427353. The reversal of 7664911427340 is 437241194667.

7664911427340 is a `hidden beast` number, since 7 + 6 + 6 + 491 + 1 + 42 + 73 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 34173922 + ... + 34397481.

It is an arithmetic number, because the mean of its divisors is an integer number (174719937392).

Almost surely, 2^{7664911427340} is an apocalyptic number.

It is an amenable number.

7664911427340 is an abundant number, since it is smaller than the sum of its proper divisors (17494759557108).

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

7664911427340 is a wasteful number, since it uses less digits than its factorization.

7664911427340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68571450 (or 68571436 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 7664911427340 in words is "seven trillion, six hundred sixty-four billion, nine hundred eleven million, four hundred twenty-seven thousand, three hundred forty".