628701380794 has 8 divisors (see below), whose sum is σ = 943058356308. Its totient is φ = 314348595360.

The previous prime is 628701380719. The next prime is 628701380891. The reversal of 628701380794 is 497083107826.

It can be written as a sum of positive squares in 2 ways, for example, as 615856105225 + 12845275569 = 784765^2 + 113337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640827 + ... + 1291534.

Almost surely, 2^628701380794 is an apocalyptic number.

628701380794 is a deficient number, since it is larger than the sum of its proper divisors (314356975514).

628701380794 is a wasteful number, since it uses less digits than its factorization.

628701380794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095040.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 628701380794 in words is "six hundred twenty-eight billion, seven hundred one million, three hundred eighty thousand, seven hundred ninety-four".