61365933213 has 8 divisors (see below), whose sum is σ = 88115186208. Its totient is φ = 37763651184.

The previous prime is 61365933151. The next prime is 61365933229. The reversal of 61365933213 is 31233956316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61365933213 - 2²² = 61361738909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61365933283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786742695 + ... + 786742772.

It is an arithmetic number, because the mean of its divisors is an integer number (11014398276).

Almost surely, 2^61365933213 is an apocalyptic number.

It is an amenable number.

61365933213 is a deficient number, since it is larger than the sum of its proper divisors (26749252995).

61365933213 is a wasteful number, since it uses less digits than its factorization.

61365933213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573485483.

The product of its digits is 262440, while the sum is 42.

The spelling of 61365933213 in words is "sixty-one billion, three hundred sixty-five million, nine hundred thirty-three thousand, two hundred thirteen".