620139850843 has 16 divisors (see below), whose sum is σ = 634671378432. Its totient is φ = 605763684000.

The previous prime is 620139850831. The next prime is 620139850879. The reversal of 620139850843 is 348058931026.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620139850843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620139851843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5080830 + ... + 5201452.

It is an arithmetic number, because the mean of its divisors is an integer number (39666961152).

Almost surely, 2^620139850843 is an apocalyptic number.

620139850843 is a deficient number, since it is larger than the sum of its proper divisors (14531527589).

620139850843 is a wasteful number, since it uses less digits than its factorization.

620139850843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121266.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 620139850843 in words is "six hundred twenty billion, one hundred thirty-nine million, eight hundred fifty thousand, eight hundred forty-three".