8521274699 has 32 divisors (see below), whose sum is σ = 10330177536. Its totient is φ = 6875148960.

The previous prime is 8521274693. The next prime is 8521274719. The reversal of 8521274699 is 9964721258.

It is a cyclic number.

It is not a de Polignac number, because 8521274699 - 2⁴ = 8521274683 is a prime.

It is a super-2 number, since 2×8521274699² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8521274699.

It is not an unprimeable number, because it can be changed into a prime (8521274693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1700732 + ... + 1705734.

It is an arithmetic number, because the mean of its divisors is an integer number (322818048).

Almost surely, 2^8521274699 is an apocalyptic number.

8521274699 is a deficient number, since it is larger than the sum of its proper divisors (1808902837).

8521274699 is a wasteful number, since it uses less digits than its factorization.

8521274699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255.

The product of its digits is 2177280, while the sum is 53.

The square root of 8521274699 is about 92310.7507227625. The cubic root of 8521274699 is about 2042.5287987402.

The spelling of 8521274699 in words is "eight billion, five hundred twenty-one million, two hundred seventy-four thousand, six hundred ninety-nine".