86920583813 has 4 divisors (see below), whose sum is σ = 99337810080. Its totient is φ = 74503357548.

The previous prime is 86920583807. The next prime is 86920583833. The reversal of 86920583813 is 31838502968.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86920583813 - 2¹² = 86920579717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86920583833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6208613123 + ... + 6208613136.

It is an arithmetic number, because the mean of its divisors is an integer number (24834452520).

Almost surely, 2^86920583813 is an apocalyptic number.

It is an amenable number.

86920583813 is a deficient number, since it is larger than the sum of its proper divisors (12417226267).

86920583813 is a wasteful number, since it uses less digits than its factorization.

86920583813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12417226266.

The product of its (nonzero) digits is 2488320, while the sum is 53.

The spelling of 86920583813 in words is "eighty-six billion, nine hundred twenty million, five hundred eighty-three thousand, eight hundred thirteen".