2133961381816 has 32 divisors (see below), whose sum is σ = 4364988134400. Its totient is φ = 969967529440.

The previous prime is 2133961381801. The next prime is 2133961381831. The reversal of 2133961381816 is 6181831693312.

It is an interprime number because it is at equal distance from previous prime (2133961381801) and next prime (2133961381831).

It is a congruent number.

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, 7238955 + ... + 7527973.

It is an arithmetic number, because the mean of its divisors is an integer number (136405879200).

Almost surely, 2^{2133961381816} is an apocalyptic number.

It is an amenable number.

2133961381816 is an abundant number, since it is smaller than the sum of its proper divisors (2231026752584).

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

2133961381816 is a wasteful number, since it uses less digits than its factorization.

2133961381816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372939 (or 372935 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 52.

The spelling of 2133961381816 in words is "two trillion, one hundred thirty-three billion, nine hundred sixty-one million, three hundred eighty-one thousand, eight hundred sixteen".