2108699145792 has 504 divisors, whose sum is σ = 6712012382400. Its totient is φ = 631938779136.

The previous prime is 2108699145769. The next prime is 2108699145809. The reversal of 2108699145792 is 2975419968012.

2108699145792 is a `hidden beast` number, since 2 + 1 + 0 + 8 + 6 + 9 + 91 + 457 + 92 = 666.

It is a super-2 number, since 2×2108699145792² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 355775533 + ... + 355781459.

Almost surely, 2^{2108699145792} 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 2108699145792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3356006191200).

2108699145792 is an abundant number, since it is smaller than the sum of its proper divisors (4603313236608).

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

2108699145792 is a wasteful number, since it uses less digits than its factorization.

2108699145792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071 (or 6039 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 2108699145792 in words is "two trillion, one hundred eight billion, six hundred ninety-nine million, one hundred forty-five thousand, seven hundred ninety-two".