86940274139 has 2 divisors, whose sum is σ = 86940274140. Its totient is φ = 86940274138.

The previous prime is 86940274103. The next prime is 86940274153. The reversal of 86940274139 is 93147204968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86940274139 - 2¹⁶ = 86940208603 is a prime.

It is a super-2 number, since 2×86940274139² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86940274159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43470137069 + 43470137070.

It is an arithmetic number, because the mean of its divisors is an integer number (43470137070).

Almost surely, 2^86940274139 is an apocalyptic number.

86940274139 is a deficient number, since it is larger than the sum of its proper divisors (1).

86940274139 is an equidigital number, since it uses as much as digits as its factorization.

86940274139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 86940274139 in words is "eighty-six billion, nine hundred forty million, two hundred seventy-four thousand, one hundred thirty-nine".