620763238861 has 8 divisors (see below), whose sum is σ = 629641555200. Its totient is φ = 611918237952.

The previous prime is 620763238831. The next prime is 620763238867. The reversal of 620763238861 is 168832367026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620763238861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620763238799 and 620763238808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620763238867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8291325 + ... + 8365858.

It is an arithmetic number, because the mean of its divisors is an integer number (78705194400).

Almost surely, 2^620763238861 is an apocalyptic number.

It is an amenable number.

620763238861 is a deficient number, since it is larger than the sum of its proper divisors (8878316339).

620763238861 is a wasteful number, since it uses less digits than its factorization.

620763238861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16657715.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 620763238861 in words is "six hundred twenty billion, seven hundred sixty-three million, two hundred thirty-eight thousand, eight hundred sixty-one".