2891953955 has 16 divisors (see below), whose sum is σ = 3789069408. Its totient is φ = 2101440000.

The previous prime is 2891953943. The next prime is 2891954017. The reversal of 2891953955 is 5593591982.

It is not a de Polignac number, because 2891953955 - 2²⁰ = 2890905379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2891953955.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44165 + ... + 87945.

It is an arithmetic number, because the mean of its divisors is an integer number (236816838).

Almost surely, 2^2891953955 is an apocalyptic number.

2891953955 is a deficient number, since it is larger than the sum of its proper divisors (897115453).

2891953955 is a wasteful number, since it uses less digits than its factorization.

2891953955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44998.

The product of its digits is 4374000, while the sum is 56.

The square root of 2891953955 is about 53776.8905292971. The cubic root of 2891953955 is about 1424.7230741242.

The spelling of 2891953955 in words is "two billion, eight hundred ninety-one million, nine hundred fifty-three thousand, nine hundred fifty-five".