620051673718645 has 8 divisors (see below), whose sum is σ = 850356581099904. Its totient is φ = 425178290549904.

The previous prime is 620051673718567. The next prime is 620051673718691. The reversal of 620051673718645 is 546817376150026.

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

It is a cyclic number.

It is not a de Polignac number, because 620051673718645 - 2⁴⁵ = 584867301629813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8857881053089 + ... + 8857881053158.

It is an arithmetic number, because the mean of its divisors is an integer number (106294572637488).

Almost surely, 2^{620051673718645} is an apocalyptic number.

It is an amenable number.

620051673718645 is a deficient number, since it is larger than the sum of its proper divisors (230304907381259).

620051673718645 is a wasteful number, since it uses less digits than its factorization.

620051673718645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17715762106259.

The product of its (nonzero) digits is 50803200, while the sum is 61.

The spelling of 620051673718645 in words is "six hundred twenty trillion, fifty-one billion, six hundred seventy-three million, seven hundred eighteen thousand, six hundred forty-five".