2631342646 has 8 divisors (see below), whose sum is σ = 4118623344. Its totient is φ = 1258468200.

The previous prime is 2631342643. The next prime is 2631342647. The reversal of 2631342646 is 6462431362.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631342643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28601505 + ... + 28601596.

It is an arithmetic number, because the mean of its divisors is an integer number (514827918).

Almost surely, 2^2631342646 is an apocalyptic number.

2631342646 is a deficient number, since it is larger than the sum of its proper divisors (1487280698).

2631342646 is a wasteful number, since it uses less digits than its factorization.

2631342646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57203126.

The product of its digits is 124416, while the sum is 37.

The square root of 2631342646 is about 51296.6143717107. The cubic root of 2631342646 is about 1380.5722345026.

The spelling of 2631342646 in words is "two billion, six hundred thirty-one million, three hundred forty-two thousand, six hundred forty-six".