86703809957 has 2 divisors, whose sum is σ = 86703809958. Its totient is φ = 86703809956.

The previous prime is 86703809953. The next prime is 86703810001. The reversal of 86703809957 is 75990830768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59185644961 + 27518164996 = 243281^2 + 165886^2 .

It is a cyclic number.

It is not a de Polignac number, because 86703809957 - 2² = 86703809953 is a prime.

It is a super-2 number, since 2×86703809957² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86703809957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86703809953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43351904978 + 43351904979.

It is an arithmetic number, because the mean of its divisors is an integer number (43351904979).

Almost surely, 2^86703809957 is an apocalyptic number.

It is an amenable number.

86703809957 is a deficient number, since it is larger than the sum of its proper divisors (1).

86703809957 is an equidigital number, since it uses as much as digits as its factorization.

86703809957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22861440, while the sum is 62.

The spelling of 86703809957 in words is "eighty-six billion, seven hundred three million, eight hundred nine thousand, nine hundred fifty-seven".