2106953982985 has 16 divisors (see below), whose sum is σ = 2530122416640. Its totient is φ = 1684378514880.

The previous prime is 2106953982971. The next prime is 2106953983007. The reversal of 2106953982985 is 5892893596012.

It is not a de Polignac number, because 2106953982985 - 2¹⁹ = 2106953458697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2106953982985.

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, 45504076 + ... + 45550354.

It is an arithmetic number, because the mean of its divisors is an integer number (158132651040).

Almost surely, 2^{2106953982985} is an apocalyptic number.

It is an amenable number.

2106953982985 is a deficient number, since it is larger than the sum of its proper divisors (423168433655).

2106953982985 is a wasteful number, since it uses less digits than its factorization.

2106953982985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52488.

The product of its (nonzero) digits is 83980800, while the sum is 67.

The spelling of 2106953982985 in words is "two trillion, one hundred six billion, nine hundred fifty-three million, nine hundred eighty-two thousand, nine hundred eighty-five".