2051283638931 has 4 divisors (see below), whose sum is σ = 2735044851912. Its totient is φ = 1367522425952.

The previous prime is 2051283638917. The next prime is 2051283638951. The reversal of 2051283638931 is 1398363821502.

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

It is a cyclic number.

It is not a de Polignac number, because 2051283638931 - 2²⁶ = 2051216530067 is a prime.

It is a super-2 number, since 2×2051283638931² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2051283638951) 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, 341880606486 + ... + 341880606491.

It is an arithmetic number, because the mean of its divisors is an integer number (683761212978).

Almost surely, 2^{2051283638931} is an apocalyptic number.

2051283638931 is a deficient number, since it is larger than the sum of its proper divisors (683761212981).

2051283638931 is an equidigital number, since it uses as much as digits as its factorization.

2051283638931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683761212980.

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 2051283638931 in words is "two trillion, fifty-one billion, two hundred eighty-three million, six hundred thirty-eight thousand, nine hundred thirty-one".