61113479479 has 8 divisors (see below), whose sum is σ = 65828991200. Its totient is φ = 56400035616.

The previous prime is 61113479447. The next prime is 61113479489. The reversal of 61113479479 is 97497431116.

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 61113479479 - 2⁵ = 61113479447 is a prime.

It is a super-2 number, since 2×61113479479² (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 (61113479419) 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, 455304 + ... + 574045.

It is an arithmetic number, because the mean of its divisors is an integer number (8228623900).

Almost surely, 2^61113479479 is an apocalyptic number.

61113479479 is a deficient number, since it is larger than the sum of its proper divisors (4715511721).

61113479479 is a wasteful number, since it uses less digits than its factorization.

61113479479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033929.

The product of its digits is 1143072, while the sum is 52.

The spelling of 61113479479 in words is "sixty-one billion, one hundred thirteen million, four hundred seventy-nine thousand, four hundred seventy-nine".