1627428880340 has 12 divisors (see below), whose sum is σ = 3417600648756. Its totient is φ = 650971552128.

The previous prime is 1627428880333. The next prime is 1627428880397. The reversal of 1627428880340 is 430888247261.

It can be written as a sum of positive squares in 2 ways, for example, as 1185315593284 + 442113287056 = 1088722^2 + 664916^2 .

It is a congruent number.

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, 40685721989 + ... + 40685722028.

It is an arithmetic number, because the mean of its divisors is an integer number (284800054063).

Almost surely, 2^{1627428880340} is an apocalyptic number.

1627428880340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1627428880340 is an abundant number, since it is smaller than the sum of its proper divisors (1790171768416).

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

1627428880340 is a wasteful number, since it uses less digits than its factorization.

1627428880340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81371444026 (or 81371444024 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 53.

The spelling of 1627428880340 in words is "one trillion, six hundred twenty-seven billion, four hundred twenty-eight million, eight hundred eighty thousand, three hundred forty".