61336879633 has 4 divisors (see below), whose sum is σ = 61337512048. Its totient is φ = 61336247220.

The previous prime is 61336879627. The next prime is 61336879657. The reversal of 61336879633 is 33697863316.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61336879633 is a prime.

It is a super-2 number, since 2×61336879633² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61336879613) 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 3 ways as a sum of consecutive naturals, for example, 136791 + ... + 376012.

It is an arithmetic number, because the mean of its divisors is an integer number (15334378012).

Almost surely, 2^61336879633 is an apocalyptic number.

It is an amenable number.

61336879633 is a deficient number, since it is larger than the sum of its proper divisors (632415).

61336879633 is a wasteful number, since it uses less digits than its factorization.

61336879633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632414.

The product of its digits is 8817984, while the sum is 55.

The spelling of 61336879633 in words is "sixty-one billion, three hundred thirty-six million, eight hundred seventy-nine thousand, six hundred thirty-three".