7807864466385 has 48 divisors (see below), whose sum is σ = 13621514889216. Its totient is φ = 4137159970944.

The previous prime is 7807864466371. The next prime is 7807864466447. The reversal of 7807864466385 is 5836644687087.

It is a happy number.

7807864466385 is a `hidden beast` number, since 7 + 8 + 0 + 7 + 86 + 4 + 466 + 3 + 85 = 666.

It is not a de Polignac number, because 7807864466385 - 2²¹ = 7807862369233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61027152 + ... + 61154958.

It is an arithmetic number, because the mean of its divisors is an integer number (283781560192).

Almost surely, 2^{7807864466385} is an apocalyptic number.

It is an amenable number.

7807864466385 is a deficient number, since it is larger than the sum of its proper divisors (5813650422831).

7807864466385 is a wasteful number, since it uses less digits than its factorization.

7807864466385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136622 (or 136619 counting only the distinct ones).

The product of its (nonzero) digits is 1300561920, while the sum is 72.

The spelling of 7807864466385 in words is "seven trillion, eight hundred seven billion, eight hundred sixty-four million, four hundred sixty-six thousand, three hundred eighty-five".