1691839003428 has 72 divisors (see below), whose sum is σ = 4890235022400. Its totient is φ = 483115527360.

The previous prime is 1691839003411. The next prime is 1691839003441. The reversal of 1691839003428 is 8243009381961.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1397203 + ... + 2309946.

Almost surely, 2^{1691839003428} is an apocalyptic number.

1691839003428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1691839003428 is an abundant number, since it is smaller than the sum of its proper divisors (3198396018972).

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

1691839003428 is a wasteful number, since it uses less digits than its factorization.

1691839003428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708977 (or 3708972 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 1691839003428 in words is "one trillion, six hundred ninety-one billion, eight hundred thirty-nine million, three thousand, four hundred twenty-eight".