7422977807640 has 96 divisors (see below), whose sum is σ = 24127451197200. Its totient is φ = 1979233194240.

The previous prime is 7422977807621. The next prime is 7422977807653. The reversal of 7422977807640 is 467087792247.

7422977807640 is a `hidden beast` number, since 7 + 422 + 9 + 77 + 80 + 7 + 64 + 0 = 666.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 1962346 + ... + 4323974.

Almost surely, 2^{7422977807640} is an apocalyptic number.

It is an amenable number.

7422977807640 is an abundant number, since it is smaller than the sum of its proper divisors (16704473389560).

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

7422977807640 is a wasteful number, since it uses less digits than its factorization.

7422977807640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370377 (or 2370370 counting only the distinct ones).

The product of its (nonzero) digits is 66382848, while the sum is 63.

The spelling of 7422977807640 in words is "seven trillion, four hundred twenty-two billion, nine hundred seventy-seven million, eight hundred seven thousand, six hundred forty".