621761674065334 has 32 divisors (see below), whose sum is σ = 1027935845709696. Its totient is φ = 279700256613120.

The previous prime is 621761674065319. The next prime is 621761674065377. The reversal of 621761674065334 is 433560476167126.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115914657 + ... + 121159939.

It is an arithmetic number, because the mean of its divisors is an integer number (32122995178428).

Almost surely, 2^{621761674065334} is an apocalyptic number.

621761674065334 is a deficient number, since it is larger than the sum of its proper divisors (406174171644362).

621761674065334 is a wasteful number, since it uses less digits than its factorization.

621761674065334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5300940.

The product of its (nonzero) digits is 91445760, while the sum is 61.

The spelling of 621761674065334 in words is "six hundred twenty-one trillion, seven hundred sixty-one billion, six hundred seventy-four million, sixty-five thousand, three hundred thirty-four".