8013521698 has 16 divisors (see below), whose sum is σ = 14794194240. Its totient is φ = 3170184336.

The previous prime is 8013521689. The next prime is 8013521707. The reversal of 8013521698 is 8961253108.

It is an interprime number because it is at equal distance from previous prime (8013521689) and next prime (8013521707).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22014988 + ... + 22015351.

It is an arithmetic number, because the mean of its divisors is an integer number (924637140).

Almost surely, 2^8013521698 is an apocalyptic number.

8013521698 is a deficient number, since it is larger than the sum of its proper divisors (6780672542).

8013521698 is a wasteful number, since it uses less digits than its factorization.

8013521698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44030361.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 8013521698 is about 89518.2757765139. The cubic root of 8013521698 is about 2001.1261739138.

The spelling of 8013521698 in words is "eight billion, thirteen million, five hundred twenty-one thousand, six hundred ninety-eight".