628677531040 has 48 divisors (see below), whose sum is σ = 1599500723688. Its totient is φ = 232127087616.

The previous prime is 628677531011. The next prime is 628677531107. The reversal of 628677531040 is 40135776826.

It can be written as a sum of positive squares in 4 ways, for example, as 334449395856 + 294228135184 = 578316^2 + 542428^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151122327 + ... + 151126486.

Almost surely, 2^628677531040 is an apocalyptic number.

It is an amenable number.

628677531040 is an abundant number, since it is smaller than the sum of its proper divisors (970823192648).

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

628677531040 is a wasteful number, since it uses less digits than its factorization.

628677531040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302248841 (or 302248833 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 628677531040 in words is "six hundred twenty-eight billion, six hundred seventy-seven million, five hundred thirty-one thousand, forty".