50749491437568 has 2352 divisors, whose sum is σ = 195099060387840. Its totient is φ = 12912350330880.

The previous prime is 50749491437549. The next prime is 50749491437581. The reversal of 50749491437568 is 86573419494705.

50749491437568 is a `hidden beast` number, since 5 + 0 + 7 + 4 + 9 + 49 + 14 + 3 + 7 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 50749491437496 and 50749491437505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 399602294721 + ... + 399602294847.

Almost surely, 2^{50749491437568} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50749491437568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97549530193920).

50749491437568 is an abundant number, since it is smaller than the sum of its proper divisors (144349568950272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50749491437568 is an equidigital number, since it uses as much as digits as its factorization.

50749491437568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 914457600, while the sum is 72.

The spelling of 50749491437568 in words is "fifty trillion, seven hundred forty-nine billion, four hundred ninety-one million, four hundred thirty-seven thousand, five hundred sixty-eight".