86785480421 has 4 divisors (see below), whose sum is σ = 86787060000. Its totient is φ = 86783900844.

The previous prime is 86785480391. The next prime is 86785480423. The reversal of 86785480421 is 12408458768.

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 86785480421 - 2²² = 86781286117 is a prime.

It is a super-2 number, since 2×86785480421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86785480423) 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, 704291 + ... + 818288.

It is an arithmetic number, because the mean of its divisors is an integer number (21696765000).

Almost surely, 2^86785480421 is an apocalyptic number.

It is an amenable number.

86785480421 is a deficient number, since it is larger than the sum of its proper divisors (1579579).

86785480421 is a wasteful number, since it uses less digits than its factorization.

86785480421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579578.

The product of its (nonzero) digits is 3440640, while the sum is 53.

The spelling of 86785480421 in words is "eighty-six billion, seven hundred eighty-five million, four hundred eighty thousand, four hundred twenty-one".