61253832465 has 24 divisors (see below), whose sum is σ = 121340925888. Its totient is φ = 28001751840.

The previous prime is 61253832439. The next prime is 61253832487. The reversal of 61253832465 is 56423835216.

61253832465 is a `hidden beast` number, since 6 + 1 + 25 + 383 + 246 + 5 = 666.

It is not a de Polignac number, because 61253832465 - 2⁶ = 61253832401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 61253832465.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97227991 + ... + 97228620.

It is an arithmetic number, because the mean of its divisors is an integer number (5055871912).

Almost surely, 2^61253832465 is an apocalyptic number.

It is an amenable number.

61253832465 is a deficient number, since it is larger than the sum of its proper divisors (60087093423).

61253832465 is a wasteful number, since it uses less digits than its factorization.

61253832465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194456629 (or 194456626 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The spelling of 61253832465 in words is "sixty-one billion, two hundred fifty-three million, eight hundred thirty-two thousand, four hundred sixty-five".