50765718531621 has 16 divisors (see below), whose sum is σ = 68929306509888. Its totient is φ = 33225101270400.

The previous prime is 50765718531551. The next prime is 50765718531659. The reversal of 50765718531621 is 12613581756705.

It is not a de Polignac number, because 50765718531621 - 2²⁹ = 50765181660709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50765718531221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266131431 + ... + 266322116.

It is an arithmetic number, because the mean of its divisors is an integer number (4308081656868).

Almost surely, 2^{50765718531621} is an apocalyptic number.

It is an amenable number.

50765718531621 is a deficient number, since it is larger than the sum of its proper divisors (18163587978267).

50765718531621 is a wasteful number, since it uses less digits than its factorization.

50765718531621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532454132.

The product of its (nonzero) digits is 10584000, while the sum is 57.

The spelling of 50765718531621 in words is "fifty trillion, seven hundred sixty-five billion, seven hundred eighteen million, five hundred thirty-one thousand, six hundred twenty-one".