4861120992025 has 9 divisors (see below), whose sum is σ = 6027803699871. Its totient is φ = 3888887974440.

The previous prime is 4861120992023. The next prime is 4861120992031. The reversal of 4861120992025 is 5202990211684.

The square root of 4861120992025 is 2204795.

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., 1750003557129 + 3111117434896 = 1322877^2 + 1763836^2 .

It is not a de Polignac number, because 4861120992025 - 2¹ = 4861120992023 is a prime.

It is a super-2 number, since 2×4861120992025² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4861120992025.

It is not an unprimeable number, because it can be changed into a prime (4861120992023) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10803496 + ... + 11244454.

Almost surely, 2^{4861120992025} is an apocalyptic number.

4861120992025 is the 2204795-th square number.

4861120992025 is the 1102398-th centered octagonal number.

It is an amenable number.

4861120992025 is a deficient number, since it is larger than the sum of its proper divisors (1166682707846).

4861120992025 is an frugal number, since it uses more digits than its factorization.

4861120992025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881928 (or 440964 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

Multiplying 4861120992025 by its sum of digits (49), we get a square (238194928609225 = 15433565²).

The spelling of 4861120992025 in words is "four trillion, eight hundred sixty-one billion, one hundred twenty million, nine hundred ninety-two thousand, twenty-five".