85964688739 has 2 divisors, whose sum is σ = 85964688740. Its totient is φ = 85964688738.

The previous prime is 85964688709. The next prime is 85964688769. The reversal of 85964688739 is 93788646958.

It is a balanced prime because it is at equal distance from previous prime (85964688709) and next prime (85964688769).

It is a cyclic number.

It is not a de Polignac number, because 85964688739 - 2⁵ = 85964688707 is a prime.

It is not a weakly prime, because it can be changed into another prime (85964688709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42982344369 + 42982344370.

It is an arithmetic number, because the mean of its divisors is an integer number (42982344370).

Almost surely, 2^85964688739 is an apocalyptic number.

85964688739 is a deficient number, since it is larger than the sum of its proper divisors (1).

85964688739 is an equidigital number, since it uses as much as digits as its factorization.

85964688739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 627056640, while the sum is 73.

The spelling of 85964688739 in words is "eighty-five billion, nine hundred sixty-four million, six hundred eighty-eight thousand, seven hundred thirty-nine".