622878406677 has 12 divisors (see below), whose sum is σ = 901979539500. Its totient is φ = 414206293248.

The previous prime is 622878406669. The next prime is 622878406727. The reversal of 622878406677 is 776604878226.

It can be written as a sum of positive squares in 2 ways, for example, as 264022296561 + 358856110116 = 513831^2 + 599046^2 .

It is not a de Polignac number, because 622878406677 - 2³ = 622878406669 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622878406177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87161052 + ... + 87168197.

It is an arithmetic number, because the mean of its divisors is an integer number (75164961625).

Almost surely, 2^622878406677 is an apocalyptic number.

It is an amenable number.

622878406677 is a deficient number, since it is larger than the sum of its proper divisors (279101132823).

622878406677 is a wasteful number, since it uses less digits than its factorization.

622878406677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174329652 (or 174329649 counting only the distinct ones).

The product of its (nonzero) digits is 75866112, while the sum is 63.

The spelling of 622878406677 in words is "six hundred twenty-two billion, eight hundred seventy-eight million, four hundred six thousand, six hundred seventy-seven".