2153838983951 has 4 divisors (see below), whose sum is σ = 2167557703752. Its totient is φ = 2140120264152.

The previous prime is 2153838983929. The next prime is 2153838983963. The reversal of 2153838983951 is 1593898383512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2153838983951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153888983951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6859359665 + ... + 6859359978.

It is an arithmetic number, because the mean of its divisors is an integer number (541889425938).

Almost surely, 2^{2153838983951} is an apocalyptic number.

2153838983951 is a deficient number, since it is larger than the sum of its proper divisors (13718719801).

2153838983951 is a wasteful number, since it uses less digits than its factorization.

2153838983951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13718719800.

The product of its digits is 55987200, while the sum is 65.

The spelling of 2153838983951 in words is "two trillion, one hundred fifty-three billion, eight hundred thirty-eight million, nine hundred eighty-three thousand, nine hundred fifty-one".