53646264634 has 4 divisors (see below), whose sum is σ = 80469396954. Its totient is φ = 26823132316.

The previous prime is 53646264587. The next prime is 53646264649. The reversal of 53646264634 is 43646264635.

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 only one way, i.e., 47261455609 + 6384809025 = 217397^2 + 79905^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13411566157 + ... + 13411566160.

Almost surely, 2^53646264634 is an apocalyptic number.

53646264634 is a deficient number, since it is larger than the sum of its proper divisors (26823132320).

53646264634 is a wasteful number, since it uses less digits than its factorization.

53646264634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26823132319.

The product of its digits is 7464960, while the sum is 49.

Subtracting from 53646264634 its reverse (43646264635), we obtain a palindrome (9999999999).

The spelling of 53646264634 in words is "fifty-three billion, six hundred forty-six million, two hundred sixty-four thousand, six hundred thirty-four".