61293352472 has 24 divisors (see below), whose sum is σ = 126322562100. Its totient is φ = 27860614320.

The previous prime is 61293352451. The next prime is 61293352513. The reversal of 61293352472 is 27425339216.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

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 in 5 ways as a sum of consecutive naturals, for example, 31658822 + ... + 31660757.

Almost surely, 2^61293352472 is an apocalyptic number.

It is an amenable number.

61293352472 is an abundant number, since it is smaller than the sum of its proper divisors (65029209628).

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

61293352472 is a wasteful number, since it uses less digits than its factorization.

61293352472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63319607 (or 63319592 counting only the distinct ones).

The product of its digits is 544320, while the sum is 44.

The spelling of 61293352472 in words is "sixty-one billion, two hundred ninety-three million, three hundred fifty-two thousand, four hundred seventy-two".