61791648253 has 8 divisors (see below), whose sum is σ = 62356907520. Its totient is φ = 61228907520.

The previous prime is 61791648251. The next prime is 61791648271. The reversal of 61791648253 is 35284619716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61791648253 - 2¹ = 61791648251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61791648253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61791648251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580323 + ... + 678496.

It is an arithmetic number, because the mean of its divisors is an integer number (7794613440).

Almost surely, 2^61791648253 is an apocalyptic number.

It is an amenable number.

61791648253 is a deficient number, since it is larger than the sum of its proper divisors (565259267).

61791648253 is a wasteful number, since it uses less digits than its factorization.

61791648253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259267.

The product of its digits is 2177280, while the sum is 52.

The spelling of 61791648253 in words is "sixty-one billion, seven hundred ninety-one million, six hundred forty-eight thousand, two hundred fifty-three".