11351598980 has 12 divisors (see below), whose sum is σ = 23838357900. Its totient is φ = 4540639584.

The previous prime is 11351598959. The next prime is 11351598983. The reversal of 11351598980 is 8989515311.

It can be written as a sum of positive squares in 2 ways, for example, as 3888021316 + 7463577664 = 62354^2 + 86392^2 .

It is not an unprimeable number, because it can be changed into a prime (11351598983) 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, 283789955 + ... + 283789994.

It is an arithmetic number, because the mean of its divisors is an integer number (1986529825).

Almost surely, 2^11351598980 is an apocalyptic number.

11351598980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11351598980 is an abundant number, since it is smaller than the sum of its proper divisors (12486758920).

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

11351598980 is a wasteful number, since it uses less digits than its factorization.

11351598980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567579958 (or 567579956 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 50.

The spelling of 11351598980 in words is "eleven billion, three hundred fifty-one million, five hundred ninety-eight thousand, nine hundred eighty".