1897484475392 has 88 divisors (see below), whose sum is σ = 4355731712640. Its totient is φ = 817098485760.

The previous prime is 1897484475361. The next prime is 1897484475421. The reversal of 1897484475392 is 2935744847981.

It is a tau number, because it is divible by the number of its divisors (88).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4219028 + ... + 4647059.

It is an arithmetic number, because the mean of its divisors is an integer number (49496951280).

Almost surely, 2^{1897484475392} is an apocalyptic number.

It is an amenable number.

1897484475392 is an abundant number, since it is smaller than the sum of its proper divisors (2458247237248).

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

1897484475392 is a wasteful number, since it uses less digits than its factorization.

1897484475392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8866137 (or 8866119 counting only the distinct ones).

The product of its digits is 487710720, while the sum is 71.

The spelling of 1897484475392 in words is "one trillion, eight hundred ninety-seven billion, four hundred eighty-four million, four hundred seventy-five thousand, three hundred ninety-two".