1897413329628 has 48 divisors (see below), whose sum is σ = 4920540674560. Its totient is φ = 632301275952.

The previous prime is 1897413329579. The next prime is 1897413329633. The reversal of 1897413329628 is 8269233147981.

1897413329628 is a `hidden beast` number, since 1 + 89 + 7 + 413 + 32 + 96 + 28 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1954426 + ... + 2759457.

Almost surely, 2^{1897413329628} is an apocalyptic number.

1897413329628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1897413329628 is an abundant number, since it is smaller than the sum of its proper divisors (3023127344932).

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

1897413329628 is a wasteful number, since it uses less digits than its factorization.

1897413329628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717623 (or 4717615 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The spelling of 1897413329628 in words is "one trillion, eight hundred ninety-seven billion, four hundred thirteen million, three hundred twenty-nine thousand, six hundred twenty-eight".