86785624381 has 8 divisors (see below), whose sum is σ = 86976167040. Its totient is φ = 86595161328.

The previous prime is 86785624369. The next prime is 86785624399. The reversal of 86785624381 is 18342658768.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86785624381 - 2⁵ = 86785624349 is a prime.

It is a super-2 number, since 2×86785624381² (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 (86785624301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2511040 + ... + 2545366.

It is an arithmetic number, because the mean of its divisors is an integer number (10872020880).

Almost surely, 2^86785624381 is an apocalyptic number.

It is an amenable number.

86785624381 is a deficient number, since it is larger than the sum of its proper divisors (190542659).

86785624381 is a wasteful number, since it uses less digits than its factorization.

86785624381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39803.

The product of its digits is 15482880, while the sum is 58.

The spelling of 86785624381 in words is "eighty-six billion, seven hundred eighty-five million, six hundred twenty-four thousand, three hundred eighty-one".