50985679655631 has 8 divisors (see below), whose sum is σ = 77692464237184. Its totient is φ = 29134674088920.

The previous prime is 50985679655597. The next prime is 50985679655681. The reversal of 50985679655631 is 13655697658905.

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

It is not a de Polignac number, because 50985679655631 - 2²² = 50985675461327 is a prime.

It is a super-2 number, since 2×50985679655631² (a number of 28 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 (50985679655681) 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, 1213944753685 + ... + 1213944753726.

It is an arithmetic number, because the mean of its divisors is an integer number (9711558029648).

Almost surely, 2^{50985679655631} is an apocalyptic number.

50985679655631 is a deficient number, since it is larger than the sum of its proper divisors (26706784581553).

50985679655631 is a wasteful number, since it uses less digits than its factorization.

50985679655631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427889507421.

The product of its (nonzero) digits is 1837080000, while the sum is 75.

The spelling of 50985679655631 in words is "fifty trillion, nine hundred eighty-five billion, six hundred seventy-nine million, six hundred fifty-five thousand, six hundred thirty-one".