1357521849892 has 18 divisors (see below), whose sum is σ = 2572463743458. Its totient is φ = 626548545792.

The previous prime is 1357521849889. The next prime is 1357521849911. The reversal of 1357521849892 is 2989481257531.

It can be written as a sum of positive squares in 3 ways, for example, as 1172788516 + 1356349061376 = 34246^2 + 1164624^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1004083533 + ... + 1004084884.

Almost surely, 2^{1357521849892} is an apocalyptic number.

It is an amenable number.

1357521849892 is a deficient number, since it is larger than the sum of its proper divisors (1214941893566).

1357521849892 is a wasteful number, since it uses less digits than its factorization.

1357521849892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008168447 (or 2008168432 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 64.

The spelling of 1357521849892 in words is "one trillion, three hundred fifty-seven billion, five hundred twenty-one million, eight hundred forty-nine thousand, eight hundred ninety-two".