2113623621536 has 96 divisors (see below), whose sum is σ = 4796827757568. Its totient is φ = 898029711360.

The previous prime is 2113623621523. The next prime is 2113623621601. The reversal of 2113623621536 is 6351263263112.

It is a junction number, because it is equal to n+sod(n) for n = 2113623621493 and 2113623621502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11950646 + ... + 12126218.

It is an arithmetic number, because the mean of its divisors is an integer number (49966955808).

Almost surely, 2^{2113623621536} 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 2113623621536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2398413878784).

2113623621536 is an abundant number, since it is smaller than the sum of its proper divisors (2683204136032).

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

2113623621536 is a wasteful number, since it uses less digits than its factorization.

2113623621536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176054 (or 176046 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

Adding to 2113623621536 its reverse (6351263263112), we get a palindrome (8464886884648).

The spelling of 2113623621536 in words is "two trillion, one hundred thirteen billion, six hundred twenty-three million, six hundred twenty-one thousand, five hundred thirty-six".