2122959977544 has 128 divisors (see below), whose sum is σ = 6150189680640. Its totient is φ = 598105078272.

The previous prime is 2122959977531. The next prime is 2122959977573. The reversal of 2122959977544 is 4457799592212.

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, 56432389 + ... + 56469995.

It is an arithmetic number, because the mean of its divisors is an integer number (48048356880).

Almost surely, 2^{2122959977544} is an apocalyptic number.

2122959977544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2122959977544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3075094840320).

2122959977544 is an abundant number, since it is smaller than the sum of its proper divisors (4027229703096).

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

2122959977544 is a wasteful number, since it uses less digits than its factorization.

2122959977544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42299 (or 42295 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 66.

The spelling of 2122959977544 in words is "two trillion, one hundred twenty-two billion, nine hundred fifty-nine million, nine hundred seventy-seven thousand, five hundred forty-four".