61731246263252 has 24 divisors (see below), whose sum is σ = 109187479317000. Its totient is φ = 30535317705600.

The previous prime is 61731246263177. The next prime is 61731246263287. The reversal of 61731246263252 is 25236264213716.

It can be written as a sum of positive squares in 4 ways, for example, as 50790194972176 + 10941051291076 = 7126724^2 + 3307726^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61731246263252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61262627 + ... + 62262122.

It is an arithmetic number, because the mean of its divisors is an integer number (4549478304875).

Almost surely, 2^{61731246263252} is an apocalyptic number.

It is an amenable number.

61731246263252 is a deficient number, since it is larger than the sum of its proper divisors (47456233053748).

61731246263252 is a wasteful number, since it uses less digits than its factorization.

61731246263252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123526091 (or 123526089 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 50.

The spelling of 61731246263252 in words is "sixty-one trillion, seven hundred thirty-one billion, two hundred forty-six million, two hundred sixty-three thousand, two hundred fifty-two".