61260718565 has 8 divisors (see below), whose sum is σ = 73515406848. Its totient is φ = 49006878480.

The previous prime is 61260718553. The next prime is 61260718567. The reversal of 61260718565 is 56581706216.

61260718565 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 61260718565 - 2¹⁸ = 61260456421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61260718567) 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, 40541 + ... + 352370.

It is an arithmetic number, because the mean of its divisors is an integer number (9189425856).

Almost surely, 2^61260718565 is an apocalyptic number.

It is an amenable number.

61260718565 is a deficient number, since it is larger than the sum of its proper divisors (12254688283).

61260718565 is a wasteful number, since it uses less digits than its factorization.

61260718565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424099.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 61260718565 in words is "sixty-one billion, two hundred sixty million, seven hundred eighteen thousand, five hundred sixty-five".