61534754245 has 8 divisors (see below), whose sum is σ = 73843129080. Its totient is φ = 49226854080.

The previous prime is 61534754213. The next prime is 61534754251. The reversal of 61534754245 is 54245743516.

It can be written as a sum of positive squares in 4 ways, for example, as 2177715556 + 59357038689 = 46666^2 + 243633^2 .

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

It is not a de Polignac number, because 61534754245 - 2⁵ = 61534754213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61534754195 and 61534754204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302311 + ... + 463099.

It is an arithmetic number, because the mean of its divisors is an integer number (9230391135).

Almost surely, 2^61534754245 is an apocalyptic number.

It is an amenable number.

61534754245 is a deficient number, since it is larger than the sum of its proper divisors (12308374835).

61534754245 is a wasteful number, since it uses less digits than its factorization.

61534754245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237335.

The product of its digits is 2016000, while the sum is 46.

The spelling of 61534754245 in words is "sixty-one billion, five hundred thirty-four million, seven hundred fifty-four thousand, two hundred forty-five".