8749321975 has 12 divisors (see below), whose sum is σ = 10853445960. Its totient is φ = 6996692000.

The previous prime is 8749321967. The next prime is 8749322003. The reversal of 8749321975 is 5791239478.

It is a happy number.

It is not a de Polignac number, because 8749321975 - 2³ = 8749321967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3376 + ... + 132325.

It is an arithmetic number, because the mean of its divisors is an integer number (904453830).

Almost surely, 2^8749321975 is an apocalyptic number.

8749321975 is a deficient number, since it is larger than the sum of its proper divisors (2104123985).

8749321975 is a wasteful number, since it uses less digits than its factorization.

8749321975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138290 (or 138285 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 55.

The square root of 8749321975 is about 93537.8104030664. The cubic root of 8749321975 is about 2060.5894231110.

The spelling of 8749321975 in words is "eight billion, seven hundred forty-nine million, three hundred twenty-one thousand, nine hundred seventy-five".