1887491137404 has 48 divisors (see below), whose sum is σ = 4546343330816. Its totient is φ = 608850950400.

The previous prime is 1887491137393. The next prime is 1887491137459. The reversal of 1887491137404 is 4047311947881.

It is a happy number.

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, 24279204 + ... + 24356820.

Almost surely, 2^{1887491137404} is an apocalyptic number.

It is an amenable number.

1887491137404 is an abundant number, since it is smaller than the sum of its proper divisors (2658852193412).

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

1887491137404 is a wasteful number, since it uses less digits than its factorization.

1887491137404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143026 (or 143024 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 57.

The spelling of 1887491137404 in words is "one trillion, eight hundred eighty-seven billion, four hundred ninety-one million, one hundred thirty-seven thousand, four hundred four".