2107631551 has 4 divisors (see below), whose sum is σ = 2107772992. Its totient is φ = 2107490112.

The previous prime is 2107631509. The next prime is 2107631569. The reversal of 2107631551 is 1551367012.

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 2107631551 - 2⁹ = 2107631039 is a prime.

It is a super-2 number, since 2×2107631551² = 8884221509541331202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2107631501) 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, 45330 + ... + 79183.

It is an arithmetic number, because the mean of its divisors is an integer number (526943248).

Almost surely, 2^2107631551 is an apocalyptic number.

2107631551 is a deficient number, since it is larger than the sum of its proper divisors (141441).

2107631551 is a wasteful number, since it uses less digits than its factorization.

2107631551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141440.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 2107631551 is about 45908.9484850176. The cubic root of 2107631551 is about 1282.1285285893.

Adding to 2107631551 its reverse (1551367012), we get a palindrome (3658998563).

The spelling of 2107631551 in words is "two billion, one hundred seven million, six hundred thirty-one thousand, five hundred fifty-one".