8436497839225 has 9 divisors (see below), whose sum is σ = 10461275328973. Its totient is φ = 6749186653120.

The previous prime is 8436497839219. The next prime is 8436497839241. The reversal of 8436497839225 is 5229387946348.

The square root of 8436497839225 is 2904565.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1053995849449 + 7382501989776 = 1026643^2 + 2717076^2 .

It is not a de Polignac number, because 8436497839225 - 2⁵ = 8436497839193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14232369 + ... + 14813281.

Almost surely, 2^{8436497839225} is an apocalyptic number.

8436497839225 is the 2904565-th square number.

8436497839225 is the 1452283-rd centered octagonal number.

It is an amenable number.

8436497839225 is a deficient number, since it is larger than the sum of its proper divisors (2024777489748).

8436497839225 is an frugal number, since it uses more digits than its factorization.

8436497839225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161836 (or 580918 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 70.

The spelling of 8436497839225 in words is "eight trillion, four hundred thirty-six billion, four hundred ninety-seven million, eight hundred thirty-nine thousand, two hundred twenty-five".