61725796231 has 16 divisors (see below), whose sum is σ = 69204159648. Its totient is φ = 54560649600.

The previous prime is 61725796217. The next prime is 61725796241. The reversal of 61725796231 is 13269752716.

It is a cyclic number.

It is not a de Polignac number, because 61725796231 - 2¹⁹ = 61725271943 is a prime.

It is a super-2 number, since 2×61725796231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61725796241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556861 + ... + 658441.

It is an arithmetic number, because the mean of its divisors is an integer number (4325259978).

Almost surely, 2^61725796231 is an apocalyptic number.

61725796231 is a deficient number, since it is larger than the sum of its proper divisors (7478363417).

61725796231 is a wasteful number, since it uses less digits than its factorization.

61725796231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103122.

The product of its digits is 952560, while the sum is 49.

The spelling of 61725796231 in words is "sixty-one billion, seven hundred twenty-five million, seven hundred ninety-six thousand, two hundred thirty-one".