1897527344216 has 32 divisors (see below), whose sum is σ = 4067134740000. Its totient is φ = 813025061376.

The previous prime is 1897527344183. The next prime is 1897527344261. The reversal of 1897527344216 is 6124437257981.

It is a super-2 number, since 2×1897527344216² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3957551 + ... + 4411038.

It is an arithmetic number, because the mean of its divisors is an integer number (127097960625).

Almost surely, 2^{1897527344216} is an apocalyptic number.

It is an amenable number.

1897527344216 is an abundant number, since it is smaller than the sum of its proper divisors (2169607395784).

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

1897527344216 is a wasteful number, since it uses less digits than its factorization.

1897527344216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372651 (or 8372647 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 59.

The spelling of 1897527344216 in words is "one trillion, eight hundred ninety-seven billion, five hundred twenty-seven million, three hundred forty-four thousand, two hundred sixteen".