11958980240 has 40 divisors (see below), whose sum is σ = 27884822400. Its totient is φ = 4769795456.

The previous prime is 11958980221. The next prime is 11958980287. The reversal of 11958980240 is 4208985911.

It is a tau number, because it is divible by the number of its divisors (40).

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, 187640 + ... + 243159.

It is an arithmetic number, because the mean of its divisors is an integer number (697120560).

Almost surely, 2^11958980240 is an apocalyptic number.

11958980240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11958980240 is an abundant number, since it is smaller than the sum of its proper divisors (15925842160).

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

11958980240 is a wasteful number, since it uses less digits than its factorization.

11958980240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431159 (or 431153 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 47.

The spelling of 11958980240 in words is "eleven billion, nine hundred fifty-eight million, nine hundred eighty thousand, two hundred forty".