8387570690091 has 12 divisors (see below), whose sum is σ = 12373153926432. Its totient is φ = 5472741159216.

The previous prime is 8387570690087. The next prime is 8387570690099. The reversal of 8387570690091 is 1900960757838.

It is not a de Polignac number, because 8387570690091 - 2² = 8387570690087 is a prime.

It is a super-2 number, since 2×8387570690091² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8387570690099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9914385736 + ... + 9914386581.

It is an arithmetic number, because the mean of its divisors is an integer number (1031096160536).

Almost surely, 2^{8387570690091} is an apocalyptic number.

8387570690091 is a deficient number, since it is larger than the sum of its proper divisors (3985583236341).

8387570690091 is a wasteful number, since it uses less digits than its factorization.

8387570690091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19828772370 (or 19828772367 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 63.

The spelling of 8387570690091 in words is "eight trillion, three hundred eighty-seven billion, five hundred seventy million, six hundred ninety thousand, ninety-one".