8399451224025 has 192 divisors, whose sum is σ = 15705031837440. Its totient is φ = 4400805427200.

The previous prime is 8399451223979. The next prime is 8399451224033. The reversal of 8399451224025 is 5204221549938.

8399451224025 is a `hidden beast` number, since 8 + 39 + 94 + 512 + 2 + 4 + 0 + 2 + 5 = 666.

It is not a de Polignac number, because 8399451224025 - 2¹⁶ = 8399451158489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4345291959 + ... + 4345293891.

It is an arithmetic number, because the mean of its divisors is an integer number (81797040820).

Almost surely, 2^{8399451224025} is an apocalyptic number.

It is an amenable number.

8399451224025 is a deficient number, since it is larger than the sum of its proper divisors (7305580613415).

8399451224025 is a wasteful number, since it uses less digits than its factorization.

8399451224025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553 (or 2542 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 8399451224025 in words is "eight trillion, three hundred ninety-nine billion, four hundred fifty-one million, two hundred twenty-four thousand, twenty-five".