1639847980522 has 8 divisors (see below), whose sum is σ = 2463127732836. Its totient is φ = 818805402912.

The previous prime is 1639847980483. The next prime is 1639847980579. The reversal of 1639847980522 is 2250897489361.

It can be written as a sum of positive squares in 2 ways, for example, as 1625928464161 + 13919516361 = 1275119^2 + 117981^2 .

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, 559291843 + ... + 559294774.

It is a 1-persistent number, because it is pandigital, but 2⋅1639847980522 = 3279695961044 is not.

Almost surely, 2^{1639847980522} is an apocalyptic number.

1639847980522 is a deficient number, since it is larger than the sum of its proper divisors (823279752314).

1639847980522 is a wasteful number, since it uses less digits than its factorization.

1639847980522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118587352.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 1639847980522 in words is "one trillion, six hundred thirty-nine billion, eight hundred forty-seven million, nine hundred eighty thousand, five hundred twenty-two".