52640421294 has 64 divisors (see below), whose sum is σ = 106711540992. Its totient is φ = 17310720000.

The previous prime is 52640421263. The next prime is 52640421299. The reversal of 52640421294 is 49212404625.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52640421299) 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 31 ways as a sum of consecutive naturals, for example, 107210389 + ... + 107210879.

It is an arithmetic number, because the mean of its divisors is an integer number (1667367828).

Almost surely, 2^52640421294 is an apocalyptic number.

52640421294 is an abundant number, since it is smaller than the sum of its proper divisors (54071119698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52640421294 is a wasteful number, since it uses less digits than its factorization.

52640421294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 52640421294 in words is "fifty-two billion, six hundred forty million, four hundred twenty-one thousand, two hundred ninety-four".