50764868647 has 4 divisors (see below), whose sum is σ = 50843819320. Its totient is φ = 50685917976.

The previous prime is 50764868641. The next prime is 50764868657. The reversal of 50764868647 is 74686846705.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50764868647 - 2⁷ = 50764868519 is a prime.

It is a super-2 number, since 2×50764868647² (a number of 22 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 (50764868641) 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 3 ways as a sum of consecutive naturals, for example, 39474372 + ... + 39475657.

It is an arithmetic number, because the mean of its divisors is an integer number (12710954830).

Almost surely, 2^50764868647 is an apocalyptic number.

50764868647 is a deficient number, since it is larger than the sum of its proper divisors (78950673).

50764868647 is an equidigital number, since it uses as much as digits as its factorization.

50764868647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78950672.

The product of its (nonzero) digits is 54190080, while the sum is 61.

The spelling of 50764868647 in words is "fifty billion, seven hundred sixty-four million, eight hundred sixty-eight thousand, six hundred forty-seven".