1881977325 has 24 divisors (see below), whose sum is σ = 3112979328. Its totient is φ = 1003255680.

The previous prime is 1881977297. The next prime is 1881977327. The reversal of 1881977325 is 5237791881.

It is not a de Polignac number, because 1881977325 - 2⁶ = 1881977261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881977327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209884 + ... + 218666.

It is an arithmetic number, because the mean of its divisors is an integer number (129707472).

Almost surely, 2^1881977325 is an apocalyptic number.

1881977325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1881977325 is a deficient number, since it is larger than the sum of its proper divisors (1231002003).

1881977325 is a wasteful number, since it uses less digits than its factorization.

1881977325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11653 (or 11648 counting only the distinct ones).

The product of its digits is 846720, while the sum is 51.

The square root of 1881977325 is about 43381.7625852155. The cubic root of 1881977325 is about 1234.6337049597.

The spelling of 1881977325 in words is "one billion, eight hundred eighty-one million, nine hundred seventy-seven thousand, three hundred twenty-five".