1639247097488 has 80 divisors (see below), whose sum is σ = 4264335148416. Its totient is φ = 589539409920.

The previous prime is 1639247097487. The next prime is 1639247097491. The reversal of 1639247097488 is 8847907429361.

It is not an unprimeable number, because it can be changed into a prime (1639247097487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51159281 + ... + 51191312.

Almost surely, 2^{1639247097488} is an apocalyptic number.

It is an amenable number.

1639247097488 is an abundant number, since it is smaller than the sum of its proper divisors (2625088050928).

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

1639247097488 is a wasteful number, since it uses less digits than its factorization.

1639247097488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102350632 (or 102350626 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 68.

The spelling of 1639247097488 in words is "one trillion, six hundred thirty-nine billion, two hundred forty-seven million, ninety-seven thousand, four hundred eighty-eight".