61517734485 has 8 divisors (see below), whose sum is σ = 98428375200. Its totient is φ = 32809458384.

The previous prime is 61517734483. The next prime is 61517734513. The reversal of 61517734485 is 58443771516.

It is a happy number.

61517734485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61517734485 - 2¹ = 61517734483 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61517734483) 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, 2050591135 + ... + 2050591164.

It is an arithmetic number, because the mean of its divisors is an integer number (12303546900).

Almost surely, 2^61517734485 is an apocalyptic number.

It is an amenable number.

61517734485 is a deficient number, since it is larger than the sum of its proper divisors (36910640715).

61517734485 is a wasteful number, since it uses less digits than its factorization.

61517734485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101182307.

The product of its digits is 2822400, while the sum is 51.

The spelling of 61517734485 in words is "sixty-one billion, five hundred seventeen million, seven hundred thirty-four thousand, four hundred eighty-five".