825972469457 has 4 divisors (see below), whose sum is σ = 827853956160. Its totient is φ = 824090982756.

The previous prime is 825972469453. The next prime is 825972469459. The reversal of 825972469457 is 754964279528.

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 a cyclic number.

It is not a de Polignac number, because 825972469457 - 2² = 825972469453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (825972469453) 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, 940742693 + ... + 940743570.

It is an arithmetic number, because the mean of its divisors is an integer number (206963489040).

Almost surely, 2^825972469457 is an apocalyptic number.

It is an amenable number.

825972469457 is a deficient number, since it is larger than the sum of its proper divisors (1881486703).

825972469457 is a wasteful number, since it uses less digits than its factorization.

825972469457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881486702.

The product of its digits is 304819200, while the sum is 68.

The spelling of 825972469457 in words is "eight hundred twenty-five billion, nine hundred seventy-two million, four hundred sixty-nine thousand, four hundred fifty-seven".