61253816373 has 24 divisors (see below), whose sum is σ = 93791063808. Its totient is φ = 38389149312.

The previous prime is 61253816369. The next prime is 61253816389. The reversal of 61253816373 is 37361835216.

61253816373 is a `hidden beast` number, since 6 + 1 + 2 + 5 + 3 + 8 + 1 + 637 + 3 = 666.

It is not a de Polignac number, because 61253816373 - 2² = 61253816369 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61253816573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99915 + ... + 363992.

It is an arithmetic number, because the mean of its divisors is an integer number (3907960992).

Almost surely, 2^61253816373 is an apocalyptic number.

It is an amenable number.

61253816373 is a deficient number, since it is larger than the sum of its proper divisors (32537247435).

61253816373 is a wasteful number, since it uses less digits than its factorization.

61253816373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464793 (or 464790 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 61253816373 in words is "sixty-one billion, two hundred fifty-three million, eight hundred sixteen thousand, three hundred seventy-three".