61479568193 has 24 divisors (see below), whose sum is σ = 66547837440. Its totient is φ = 56762314560.

The previous prime is 61479568177. The next prime is 61479568201. The reversal of 61479568193 is 39186597416.

It is not a de Polignac number, because 61479568193 - 2⁴ = 61479568177 is a prime.

It is a super-3 number, since 3×61479568193³ (a number of 33 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (61479568093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4047533 + ... + 4062693.

It is an arithmetic number, because the mean of its divisors is an integer number (2772826560).

Almost surely, 2^61479568193 is an apocalyptic number.

It is an amenable number.

61479568193 is a deficient number, since it is larger than the sum of its proper divisors (5068269247).

61479568193 is a wasteful number, since it uses less digits than its factorization.

61479568193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15485 (or 15466 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 59.

The spelling of 61479568193 in words is "sixty-one billion, four hundred seventy-nine million, five hundred sixty-eight thousand, one hundred ninety-three".