93959432891 has 2 divisors, whose sum is σ = 93959432892. Its totient is φ = 93959432890.

The previous prime is 93959432869. The next prime is 93959432923. The reversal of 93959432891 is 19823495939.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93959432891 is a prime.

It is a super-3 number, since 3×93959432891³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (93959432291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46979716445 + 46979716446.

It is an arithmetic number, because the mean of its divisors is an integer number (46979716446).

Almost surely, 2^93959432891 is an apocalyptic number.

93959432891 is a deficient number, since it is larger than the sum of its proper divisors (1).

93959432891 is an equidigital number, since it uses as much as digits as its factorization.

93959432891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18895680, while the sum is 62.

The spelling of 93959432891 in words is "ninety-three billion, nine hundred fifty-nine million, four hundred thirty-two thousand, eight hundred ninety-one".