86912346457 has 2 divisors, whose sum is σ = 86912346458. Its totient is φ = 86912346456.

The previous prime is 86912346383. The next prime is 86912346487. The reversal of 86912346457 is 75464321968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79492419136 + 7419927321 = 281944^2 + 86139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86912346457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86912346398 and 86912346407.

It is not a weakly prime, because it can be changed into another prime (86912346487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43456173228 + 43456173229.

It is an arithmetic number, because the mean of its divisors is an integer number (43456173229).

Almost surely, 2^86912346457 is an apocalyptic number.

It is an amenable number.

86912346457 is a deficient number, since it is larger than the sum of its proper divisors (1).

86912346457 is an equidigital number, since it uses as much as digits as its factorization.

86912346457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 55.

The spelling of 86912346457 in words is "eighty-six billion, nine hundred twelve million, three hundred forty-six thousand, four hundred fifty-seven".