61349615233 has 32 divisors (see below), whose sum is σ = 65691688320. Its totient is φ = 57217881600.

The previous prime is 61349615231. The next prime is 61349615251. The reversal of 61349615233 is 33251694316.

It is a cyclic number.

It is not a de Polignac number, because 61349615233 - 2¹ = 61349615231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61349615233.

It is not an unprimeable number, because it can be changed into a prime (61349615231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14770285 + ... + 14774437.

It is an arithmetic number, because the mean of its divisors is an integer number (2052865260).

Almost surely, 2^61349615233 is an apocalyptic number.

It is an amenable number.

61349615233 is a deficient number, since it is larger than the sum of its proper divisors (4342073087).

61349615233 is a wasteful number, since it uses less digits than its factorization.

61349615233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4417.

The product of its digits is 349920, while the sum is 43.

The spelling of 61349615233 in words is "sixty-one billion, three hundred forty-nine million, six hundred fifteen thousand, two hundred thirty-three".