620134650526751 has 4 divisors (see below), whose sum is σ = 630645407315400. Its totient is φ = 609623893738104.

The previous prime is 620134650526747. The next prime is 620134650526799. The reversal of 620134650526751 is 157625056431026.

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 620134650526751 - 2² = 620134650526747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620134650526693 and 620134650526702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620134650526351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5255378394236 + ... + 5255378394353.

It is an arithmetic number, because the mean of its divisors is an integer number (157661351828850).

Almost surely, 2^{620134650526751} is an apocalyptic number.

620134650526751 is a deficient number, since it is larger than the sum of its proper divisors (10510756788649).

620134650526751 is a wasteful number, since it uses less digits than its factorization.

620134650526751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10510756788648.

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 620134650526751 in words is "six hundred twenty trillion, one hundred thirty-four billion, six hundred fifty million, five hundred twenty-six thousand, seven hundred fifty-one".