86991668703 has 12 divisors (see below), whose sum is σ = 125679813480. Its totient is φ = 57982823856.

The previous prime is 86991668593. The next prime is 86991668737. The reversal of 86991668703 is 30786619968.

It is not a de Polignac number, because 86991668703 - 2²⁰ = 86990620127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86991667703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 920968 + ... + 1011021.

It is an arithmetic number, because the mean of its divisors is an integer number (10473317790).

Almost surely, 2^86991668703 is an apocalyptic number.

86991668703 is a deficient number, since it is larger than the sum of its proper divisors (38688144777).

86991668703 is a wasteful number, since it uses less digits than its factorization.

86991668703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936998 (or 1936995 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 86991668703 in words is "eighty-six billion, nine hundred ninety-one million, six hundred sixty-eight thousand, seven hundred three".