86370760891 has 4 divisors (see below), whose sum is σ = 87411372552. Its totient is φ = 85330149232.

The previous prime is 86370760873. The next prime is 86370760897. The reversal of 86370760891 is 19806707368.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86370760891 - 2¹⁵ = 86370728123 is a prime.

It is a super-2 number, since 2×86370760891² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86370760897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520305706 + ... + 520305871.

It is an arithmetic number, because the mean of its divisors is an integer number (21852843138).

Almost surely, 2^86370760891 is an apocalyptic number.

86370760891 is a deficient number, since it is larger than the sum of its proper divisors (1040611661).

86370760891 is a wasteful number, since it uses less digits than its factorization.

86370760891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040611660.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 86370760891 in words is "eighty-six billion, three hundred seventy million, seven hundred sixty thousand, eight hundred ninety-one".