825207745629 has 4 divisors (see below), whose sum is σ = 1100276994176. Its totient is φ = 550138497084.

The previous prime is 825207745597. The next prime is 825207745643. The reversal of 825207745629 is 926547702528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 825207745629 - 2⁵ = 825207745597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825207745129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137534624269 + ... + 137534624274.

It is an arithmetic number, because the mean of its divisors is an integer number (275069248544).

Almost surely, 2^825207745629 is an apocalyptic number.

It is an amenable number.

825207745629 is a deficient number, since it is larger than the sum of its proper divisors (275069248547).

825207745629 is a wasteful number, since it uses less digits than its factorization.

825207745629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275069248546.

The product of its (nonzero) digits is 16934400, while the sum is 57.

The spelling of 825207745629 in words is "eight hundred twenty-five billion, two hundred seven million, seven hundred forty-five thousand, six hundred twenty-nine".