1884977973025 has 27 divisors (see below), whose sum is σ = 2719053869619. Its totient is φ = 1292523373680.

The previous prime is 1884977973017. The next prime is 1884977973061. The reversal of 1884977973025 is 5203797794881.

The square root of 1884977973025 is 1372945.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 678592070289 + 1206385902736 = 823767^2 + 1098356^2 .

It is not a de Polignac number, because 1884977973025 - 2³ = 1884977973017 is a prime.

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 48033462 + ... + 48072688.

Almost surely, 2^{1884977973025} is an apocalyptic number.

1884977973025 is the 1372945-th square number.

1884977973025 is the 686473-rd centered octagonal number.

It is an amenable number.

1884977973025 is a deficient number, since it is larger than the sum of its proper divisors (834075896594).

1884977973025 is an frugal number, since it uses more digits than its factorization.

1884977973025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78478 (or 39239 counting only the distinct ones).

The product of its (nonzero) digits is 213373440, while the sum is 70.

The spelling of 1884977973025 in words is "one trillion, eight hundred eighty-four billion, nine hundred seventy-seven million, nine hundred seventy-three thousand, twenty-five".