620858977437 has 16 divisors (see below), whose sum is σ = 843670961280. Its totient is φ = 405980932032.

The previous prime is 620858977399. The next prime is 620858977447. The reversal of 620858977437 is 734779858026.

It is a happy number.

It is not a de Polignac number, because 620858977437 - 2⁸ = 620858977181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620858977447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7239 + ... + 1114347.

It is an arithmetic number, because the mean of its divisors is an integer number (52729435080).

Almost surely, 2^620858977437 is an apocalyptic number.

It is an amenable number.

620858977437 is a deficient number, since it is larger than the sum of its proper divisors (222811983843).

620858977437 is a wasteful number, since it uses less digits than its factorization.

620858977437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110692.

The product of its (nonzero) digits is 142248960, while the sum is 66.

The spelling of 620858977437 in words is "six hundred twenty billion, eight hundred fifty-eight million, nine hundred seventy-seven thousand, four hundred thirty-seven".