11631589480 has 64 divisors (see below), whose sum is σ = 31484016000. Its totient is φ = 3778078464.

The previous prime is 11631589457. The next prime is 11631589511. The reversal of 11631589480 is 8498513611.

It is a self number, because there is not a number n which added to its sum of digits gives 11631589480.

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, 1087875 + ... + 1098514.

It is an arithmetic number, because the mean of its divisors is an integer number (491937750).

Almost surely, 2^11631589480 is an apocalyptic number.

11631589480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11631589480 is an abundant number, since it is smaller than the sum of its proper divisors (19852426520).

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

11631589480 is a wasteful number, since it uses less digits than its factorization.

11631589480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186426 (or 2186422 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 11631589480 in words is "eleven billion, six hundred thirty-one million, five hundred eighty-nine thousand, four hundred eighty".