620644115399 has 8 divisors (see below), whose sum is σ = 773790066048. Its totient is φ = 483618791160.

The previous prime is 620644115389. The next prime is 620644115407. The reversal of 620644115399 is 993511446026.

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 620644115399 - 2¹⁶ = 620644049863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620644115389) 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, 4030156517 + ... + 4030156670.

It is an arithmetic number, because the mean of its divisors is an integer number (96723758256).

Almost surely, 2^620644115399 is an apocalyptic number.

620644115399 is a deficient number, since it is larger than the sum of its proper divisors (153145950649).

620644115399 is a wasteful number, since it uses less digits than its factorization.

620644115399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8060313205.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 620644115399 in words is "six hundred twenty billion, six hundred forty-four million, one hundred fifteen thousand, three hundred ninety-nine".