61613256436315 has 8 divisors (see below), whose sum is σ = 73942884847440. Its totient is φ = 49285953733152.

The previous prime is 61613256436313. The next prime is 61613256436331. The reversal of 61613256436315 is 51363465231616.

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 61613256436315 - 2¹ = 61613256436313 is a prime.

It is a super-2 number, since 2×61613256436315² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61613256436313) 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, 581368705 + ... + 581474674.

It is an arithmetic number, because the mean of its divisors is an integer number (9242860605930).

Almost surely, 2^{61613256436315} is an apocalyptic number.

61613256436315 is a deficient number, since it is larger than the sum of its proper divisors (12329628411125).

61613256436315 is a wasteful number, since it uses less digits than its factorization.

61613256436315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162853981.

The product of its digits is 6998400, while the sum is 52.

The spelling of 61613256436315 in words is "sixty-one trillion, six hundred thirteen billion, two hundred fifty-six million, four hundred thirty-six thousand, three hundred fifteen".