9949912875 has 96 divisors (see below), whose sum is σ = 21577920000. Its totient is φ = 4309070400.

The previous prime is 9949912849. The next prime is 9949912883. The reversal of 9949912875 is 5782199499.

It is not a de Polignac number, because 9949912875 - 2¹³ = 9949904683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 116376 + ... + 182874.

It is an arithmetic number, because the mean of its divisors is an integer number (224770000).

Almost surely, 2^9949912875 is an apocalyptic number.

9949912875 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

9949912875 is the 49875-th decagonal number.

9949912875 is an abundant number, since it is smaller than the sum of its proper divisors (11628007125).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9949912875 is a wasteful number, since it uses less digits than its factorization.

9949912875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66546 (or 66533 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 63.

The square root of 9949912875 is about 99749.2499971804. The cubic root of 9949912875 is about 2150.8316865292.

The spelling of 9949912875 in words is "nine billion, nine hundred forty-nine million, nine hundred twelve thousand, eight hundred seventy-five".