11980797598 has 64 divisors (see below), whose sum is σ = 22813539840. Its totient is φ = 4583145600.

The previous prime is 11980797547. The next prime is 11980797623. The reversal of 11980797598 is 89579708911.

It is a happy number.

It is a super-2 number, since 2×11980797598² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9515493 + ... + 9516751.

It is an arithmetic number, because the mean of its divisors is an integer number (356461560).

Almost surely, 2^11980797598 is an apocalyptic number.

11980797598 is a deficient number, since it is larger than the sum of its proper divisors (10832742242).

11980797598 is a wasteful number, since it uses less digits than its factorization.

11980797598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353.

The product of its (nonzero) digits is 11430720, while the sum is 64.

The spelling of 11980797598 in words is "eleven billion, nine hundred eighty million, seven hundred ninety-seven thousand, five hundred ninety-eight".