1887680880 has 60 divisors (see below), whose sum is σ = 6339464040. Its totient is φ = 503381376.

The previous prime is 1887680843. The next prime is 1887680953. The reversal of 1887680880 is 880867881.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1310170 + ... + 1311609.

It is an arithmetic number, because the mean of its divisors is an integer number (105657734).

Almost surely, 2^1887680880 is an apocalyptic number.

1887680880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1887680880 is an abundant number, since it is smaller than the sum of its proper divisors (4451783160).

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

1887680880 is a wasteful number, since it uses less digits than its factorization.

1887680880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621798 (or 2621789 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 54.

The square root of 1887680880 is about 43447.4496374643. The cubic root of 1887680880 is about 1235.8796816301.

The spelling of 1887680880 in words is "one billion, eight hundred eighty-seven million, six hundred eighty thousand, eight hundred eighty".