2897638040025 has 81 divisors (see below), whose sum is σ = 5221416593757. Its totient is φ = 1536105888000.

The previous prime is 2897638039957. The next prime is 2897638040029. The reversal of 2897638040025 is 5200408367982.

The square root of 2897638040025 is 1702245.

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

2897638040025 is a `hidden beast` number, since 2 + 89 + 7 + 63 + 80 + 400 + 25 = 666.

2897638040025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 775127050569 + 2122510989456 = 880413^2 + 1456884^2 .

It is not a de Polignac number, because 2897638040025 - 2¹¹ = 2897638037977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2897638040029) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 7226029825 + ... + 7226030225.

Almost surely, 2^{2897638040025} is an apocalyptic number.

2897638040025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2897638040025 is the 1702245-th square number.

2897638040025 is the 851123-rd centered octagonal number.

It is an amenable number.

2897638040025 is a deficient number, since it is larger than the sum of its proper divisors (2323778553732).

2897638040025 is an frugal number, since it uses more digits than its factorization.

2897638040025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 2897638040025 in words is "two trillion, eight hundred ninety-seven billion, six hundred thirty-eight million, forty thousand, twenty-five".