86975749749 has 24 divisors (see below), whose sum is σ = 137771411328. Its totient is φ = 48642968640.

The previous prime is 86975749747. The next prime is 86975749759. The reversal of 86975749749 is 94794757968.

It is not a de Polignac number, because 86975749749 - 2¹ = 86975749747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86975749747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6287472 + ... + 6301289.

It is an arithmetic number, because the mean of its divisors is an integer number (5740475472).

Almost surely, 2^86975749749 is an apocalyptic number.

It is an amenable number.

86975749749 is a deficient number, since it is larger than the sum of its proper divisors (50795661579).

86975749749 is a wasteful number, since it uses less digits than its factorization.

86975749749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12588825 (or 12588818 counting only the distinct ones).

The product of its digits is 960180480, while the sum is 75.

The spelling of 86975749749 in words is "eighty-six billion, nine hundred seventy-five million, seven hundred forty-nine thousand, seven hundred forty-nine".