9908874641 has 4 divisors (see below), whose sum is σ = 9909467712. Its totient is φ = 9908281572.

The previous prime is 9908874637. The next prime is 9908874653. The reversal of 9908874641 is 1464788099.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9908874641 - 2² = 9908874637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9908874631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270725 + ... + 305138.

It is an arithmetic number, because the mean of its divisors is an integer number (2477366928).

Almost surely, 2^9908874641 is an apocalyptic number.

It is an amenable number.

9908874641 is a deficient number, since it is larger than the sum of its proper divisors (593071).

9908874641 is a wasteful number, since it uses less digits than its factorization.

9908874641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593070.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The square root of 9908874641 is about 99543.3304697005. The cubic root of 9908874641 is about 2147.8705897857.

The spelling of 9908874641 in words is "nine billion, nine hundred eight million, eight hundred seventy-four thousand, six hundred forty-one".