8408915901 has 6 divisors (see below), whose sum is σ = 12146211870. Its totient is φ = 5605943928.

The previous prime is 8408915891. The next prime is 8408915959. The reversal of 8408915901 is 1095198048.

It can be written as a sum of positive squares in only one way, i.e., 7328216025 + 1080699876 = 85605^2 + 32874^2 .

It is not a de Polignac number, because 8408915901 - 2¹¹ = 8408913853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8408915971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 467161986 + ... + 467162003.

It is an arithmetic number, because the mean of its divisors is an integer number (2024368645).

Almost surely, 2^8408915901 is an apocalyptic number.

It is an amenable number.

8408915901 is a deficient number, since it is larger than the sum of its proper divisors (3737295969).

8408915901 is a wasteful number, since it uses less digits than its factorization.

8408915901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934323995 (or 934323992 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 8408915901 is about 91700.1412267179. The cubic root of 8408915901 is about 2033.5116727540.

The spelling of 8408915901 in words is "eight billion, four hundred eight million, nine hundred fifteen thousand, nine hundred one".