9099421956 has 48 divisors (see below), whose sum is σ = 23943218880. Its totient is φ = 2987867520.

The previous prime is 9099421949. The next prime is 9099421963. The reversal of 9099421956 is 6591249909.

It is an interprime number because it is at equal distance from previous prime (9099421949) and next prime (9099421963).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621525 + ... + 635996.

It is an arithmetic number, because the mean of its divisors is an integer number (498817060).

Almost surely, 2^9099421956 is an apocalyptic number.

It is an amenable number.

9099421956 is an abundant number, since it is smaller than the sum of its proper divisors (14843796924).

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

9099421956 is a wasteful number, since it uses less digits than its factorization.

9099421956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257601 (or 1257593 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The square root of 9099421956 is about 95390.8903197784. The cubic root of 9099421956 is about 2087.7152719824.

The spelling of 9099421956 in words is "nine billion, ninety-nine million, four hundred twenty-one thousand, nine hundred fifty-six".