86948981923 has 2 divisors, whose sum is σ = 86948981924. Its totient is φ = 86948981922.

The previous prime is 86948981851. The next prime is 86948981941. The reversal of 86948981923 is 32918984968.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86948981923 is a prime.

It is not a weakly prime, because it can be changed into another prime (86948981993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43474490961 + 43474490962.

It is an arithmetic number, because the mean of its divisors is an integer number (43474490962).

Almost surely, 2^86948981923 is an apocalyptic number.

86948981923 is a deficient number, since it is larger than the sum of its proper divisors (1).

86948981923 is an equidigital number, since it uses as much as digits as its factorization.

86948981923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53747712, while the sum is 67.

The spelling of 86948981923 in words is "eighty-six billion, nine hundred forty-eight million, nine hundred eighty-one thousand, nine hundred twenty-three".