2631900579493 has 4 divisors (see below), whose sum is σ = 2631968666380. Its totient is φ = 2631832492608.

The previous prime is 2631900579463. The next prime is 2631900579521. The reversal of 2631900579493 is 3949750091362.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 691902885249 + 1939997694244 = 831807^2 + 1392838^2 .

It is a cyclic number.

It is not a de Polignac number, because 2631900579493 - 2⁵ = 2631900579461 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 (2631900579463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33985428 + ... + 34062781.

It is an arithmetic number, because the mean of its divisors is an integer number (657992166595).

Almost surely, 2^{2631900579493} is an apocalyptic number.

It is an amenable number.

2631900579493 is a deficient number, since it is larger than the sum of its proper divisors (68086887).

2631900579493 is an equidigital number, since it uses as much as digits as its factorization.

2631900579493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68086886.

The product of its (nonzero) digits is 11022480, while the sum is 58.

The spelling of 2631900579493 in words is "two trillion, six hundred thirty-one billion, nine hundred million, five hundred seventy-nine thousand, four hundred ninety-three".