86975749748 has 6 divisors (see below), whose sum is σ = 152207562066. Its totient is φ = 43487874872.

The previous prime is 86975749747. The next prime is 86975749759. The reversal of 86975749748 is 84794757968.

It can be written as a sum of positive squares in only one way, i.e., 81254642704 + 5721107044 = 285052^2 + 75638^2 .

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 as a sum of consecutive naturals, namely, 10871968715 + ... + 10871968722.

It is an arithmetic number, because the mean of its divisors is an integer number (25367927011).

Almost surely, 2^86975749748 is an apocalyptic number.

It is an amenable number.

86975749748 is a deficient number, since it is larger than the sum of its proper divisors (65231812318).

86975749748 is a wasteful number, since it uses less digits than its factorization.

86975749748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21743937441 (or 21743937439 counting only the distinct ones).

The product of its digits is 853493760, while the sum is 74.

The spelling of 86975749748 in words is "eighty-six billion, nine hundred seventy-five million, seven hundred forty-nine thousand, seven hundred forty-eight".