1640907570027 has 12 divisors (see below), whose sum is σ = 2404856273960. Its totient is φ = 994489436160.

The previous prime is 1640907569989. The next prime is 1640907570079. The reversal of 1640907570027 is 7200757090461.

It is a happy number.

It is not a de Polignac number, because 1640907570027 - 2¹⁰ = 1640907569003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1640907572027) 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, 2260202902 + ... + 2260203627.

Almost surely, 2^{1640907570027} is an apocalyptic number.

1640907570027 is a deficient number, since it is larger than the sum of its proper divisors (763948703933).

1640907570027 is a wasteful number, since it uses less digits than its factorization.

1640907570027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4520406554 (or 4520406543 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 48.

The spelling of 1640907570027 in words is "one trillion, six hundred forty billion, nine hundred seven million, five hundred seventy thousand, twenty-seven".