961137498888 has 320 divisors, whose sum is σ = 3343066214400. Its totient is φ = 251764640640.

The previous prime is 961137498859. The next prime is 961137498931. The reversal of 961137498888 is 888894731169.

961137498888 is a `hidden beast` number, since 96 + 1 + 1 + 374 + 98 + 8 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2491831 + ... + 2851577.

It is an arithmetic number, because the mean of its divisors is an integer number (10447081920).

Almost surely, 2^961137498888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 961137498888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1671533107200).

961137498888 is an abundant number, since it is smaller than the sum of its proper divisors (2381928715512).

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

961137498888 is a wasteful number, since it uses less digits than its factorization.

961137498888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359822 (or 359809 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 72.

The spelling of 961137498888 in words is "nine hundred sixty-one billion, one hundred thirty-seven million, four hundred ninety-eight thousand, eight hundred eighty-eight".