620968805923 has 8 divisors (see below), whose sum is σ = 657504127440. Its totient is φ = 584434344960.

The previous prime is 620968805887. The next prime is 620968805959. The reversal of 620968805923 is 329508869026.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (620968805887) and next prime (620968805959).

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

It is a de Polignac number, because none of the positive numbers 2^k-620968805923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620968805323) 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, 1821363 + ... + 2135251.

It is an arithmetic number, because the mean of its divisors is an integer number (82188015930).

Almost surely, 2^620968805923 is an apocalyptic number.

620968805923 is a deficient number, since it is larger than the sum of its proper divisors (36535321517).

620968805923 is a wasteful number, since it uses less digits than its factorization.

620968805923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430277.

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 620968805923 in words is "six hundred twenty billion, nine hundred sixty-eight million, eight hundred five thousand, nine hundred twenty-three".