86990071707 has 96 divisors (see below), whose sum is σ = 157615511040. Its totient is φ = 44914383360.

The previous prime is 86990071661. The next prime is 86990071723. The reversal of 86990071707 is 70717009968.

It is not a de Polignac number, because 86990071707 - 2⁸ = 86990071451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86990071807) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 140988463 + ... + 140989079.

It is an arithmetic number, because the mean of its divisors is an integer number (1641828240).

Almost surely, 2^86990071707 is an apocalyptic number.

86990071707 is a deficient number, since it is larger than the sum of its proper divisors (70625439333).

86990071707 is a wasteful number, since it uses less digits than its factorization.

86990071707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 54.

The spelling of 86990071707 in words is "eighty-six billion, nine hundred ninety million, seventy-one thousand, seven hundred seven".