9975819902 has 16 divisors (see below), whose sum is σ = 15472189824. Its totient is φ = 4818960000.

The previous prime is 9975819863. The next prime is 9975819937. The reversal of 9975819902 is 2099185799.

It is a congruent number.

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, 96599 + ... + 171122.

It is an arithmetic number, because the mean of its divisors is an integer number (967011864).

Almost surely, 2^9975819902 is an apocalyptic number.

9975819902 is a deficient number, since it is larger than the sum of its proper divisors (5496369922).

9975819902 is a wasteful number, since it uses less digits than its factorization.

9975819902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268355.

The product of its (nonzero) digits is 3674160, while the sum is 59.

The square root of 9975819902 is about 99879.0263368641. The cubic root of 9975819902 is about 2152.6968071410.

The spelling of 9975819902 in words is "nine billion, nine hundred seventy-five million, eight hundred nineteen thousand, nine hundred two".