86706190627957 has 4 divisors (see below), whose sum is σ = 87141900128800. Its totient is φ = 86270481127116.

The previous prime is 86706190627951. The next prime is 86706190628003. The reversal of 86706190627957 is 75972609160768.

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 a de Polignac number, because none of the positive numbers 2^k-86706190627957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86706190627957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86706190627951) 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, 217854750123 + ... + 217854750520.

It is an arithmetic number, because the mean of its divisors is an integer number (21785475032200).

Almost surely, 2^{86706190627957} is an apocalyptic number.

It is an amenable number.

86706190627957 is a deficient number, since it is larger than the sum of its proper divisors (435709500843).

86706190627957 is a wasteful number, since it uses less digits than its factorization.

86706190627957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435709500842.

The product of its (nonzero) digits is 480090240, while the sum is 73.

The spelling of 86706190627957 in words is "eighty-six trillion, seven hundred six billion, one hundred ninety million, six hundred twenty-seven thousand, nine hundred fifty-seven".