61317765047199 has 8 divisors (see below), whose sum is σ = 81757056423600. Its totient is φ = 40878491851136.

The previous prime is 61317765047197. The next prime is 61317765047239. The reversal of 61317765047199 is 99174056771316.

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 61317765047199 - 2¹ = 61317765047197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61317765047197) 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, 9726577 + ... + 14739125.

It is an arithmetic number, because the mean of its divisors is an integer number (10219632052950).

Almost surely, 2^{61317765047199} is an apocalyptic number.

61317765047199 is a deficient number, since it is larger than the sum of its proper divisors (20439291376401).

61317765047199 is a wasteful number, since it uses less digits than its factorization.

61317765047199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9090169.

The product of its (nonzero) digits is 60011280, while the sum is 66.

The spelling of 61317765047199 in words is "sixty-one trillion, three hundred seventeen billion, seven hundred sixty-five million, forty-seven thousand, one hundred ninety-nine".