61367578479 has 32 divisors (see below), whose sum is σ = 91320127680. Its totient is φ = 40729651200.

The previous prime is 61367578471. The next prime is 61367578541. The reversal of 61367578479 is 97487576316.

61367578479 is a `hidden beast` number, since 6 + 13 + 6 + 7 + 578 + 47 + 9 = 666.

It is not a de Polignac number, because 61367578479 - 2³ = 61367578471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61367578471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10474719 + ... + 10480575.

It is an arithmetic number, because the mean of its divisors is an integer number (2853753990).

Almost surely, 2^61367578479 is an apocalyptic number.

61367578479 is a deficient number, since it is larger than the sum of its proper divisors (29952549201).

61367578479 is a wasteful number, since it uses less digits than its factorization.

61367578479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7528 (or 7522 counting only the distinct ones).

The product of its digits is 53343360, while the sum is 63.

The spelling of 61367578479 in words is "sixty-one billion, three hundred sixty-seven million, five hundred seventy-eight thousand, four hundred seventy-nine".