8234787815425 has 6 divisors (see below), whose sum is σ = 10211136891158. Its totient is φ = 6587830252320.

The previous prime is 8234787815411. The next prime is 8234787815453. The reversal of 8234787815425 is 5245187874328.

It is a Cunningham number, because it is equal to 2869632²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 8234787815424 = 1^2 + 2869632^2 .

It is not a de Polignac number, because 8234787815425 - 2²⁷ = 8234653597697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 164695756284 + ... + 164695756333.

Almost surely, 2^{8234787815425} is an apocalyptic number.

It is an amenable number.

8234787815425 is a deficient number, since it is larger than the sum of its proper divisors (1976349075733).

8234787815425 is a wasteful number, since it uses less digits than its factorization.

8234787815425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329391512627 (or 329391512622 counting only the distinct ones).

The product of its digits is 120422400, while the sum is 64.

The spelling of 8234787815425 in words is "eight trillion, two hundred thirty-four billion, seven hundred eighty-seven million, eight hundred fifteen thousand, four hundred twenty-five".