2100697854 has 32 divisors (see below), whose sum is σ = 4469665536. Its totient is φ = 655912320.

The previous prime is 2100697849. The next prime is 2100697861. The reversal of 2100697854 is 4587960012.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27282 + ... + 70325.

It is an arithmetic number, because the mean of its divisors is an integer number (139677048).

Almost surely, 2^2100697854 is an apocalyptic number.

2100697854 is an abundant number, since it is smaller than the sum of its proper divisors (2368967682).

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

2100697854 is a wasteful number, since it uses less digits than its factorization.

2100697854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97840.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 2100697854 is about 45833.3705284698. The cubic root of 2100697854 is about 1280.7209996415.

The spelling of 2100697854 in words is "two billion, one hundred million, six hundred ninety-seven thousand, eight hundred fifty-four".