628214297790 has 64 divisors (see below), whose sum is σ = 1589025795840. Its totient is φ = 158510960640.

The previous prime is 628214297761. The next prime is 628214297839. The reversal of 628214297790 is 97792412826.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 628214297790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217219 + ... + 1141758.

It is an arithmetic number, because the mean of its divisors is an integer number (24828528060).

Almost surely, 2^628214297790 is an apocalyptic number.

628214297790 is an abundant number, since it is smaller than the sum of its proper divisors (960811498050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628214297790 is a wasteful number, since it uses less digits than its factorization.

628214297790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359817.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 628214297790 in words is "six hundred twenty-eight billion, two hundred fourteen million, two hundred ninety-seven thousand, seven hundred ninety".