8635379409 has 16 divisors (see below), whose sum is σ = 12795114240. Its totient is φ = 5756037840.

The previous prime is 8635379383. The next prime is 8635379443. The reversal of 8635379409 is 9049735368.

8635379409 is a `hidden beast` number, since 8 + 63 + 537 + 9 + 40 + 9 = 666.

It is not a de Polignac number, because 8635379409 - 2⁵ = 8635379377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8635372409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188824 + ... + 230054.

It is an arithmetic number, because the mean of its divisors is an integer number (799694640).

Almost surely, 2^8635379409 is an apocalyptic number.

It is an amenable number.

8635379409 is a deficient number, since it is larger than the sum of its proper divisors (4159734831).

8635379409 is a wasteful number, since it uses less digits than its factorization.

8635379409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48997 (or 48991 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The square root of 8635379409 is about 92926.7421628457. The cubic root of 8635379409 is about 2051.6052791432.

The spelling of 8635379409 in words is "eight billion, six hundred thirty-five million, three hundred seventy-nine thousand, four hundred nine".