25344156461 has 8 divisors (see below), whose sum is σ = 28899219384. Its totient is φ = 22018452480.

The previous prime is 25344156457. The next prime is 25344156533. The reversal of 25344156461 is 16465144352.

It can be written as a sum of positive squares in 4 ways, for example, as 3236927236 + 22107229225 = 56894^2 + 148685^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25344156461 - 2² = 25344156457 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 (25344156421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57339500 + ... + 57339941.

It is an arithmetic number, because the mean of its divisors is an integer number (3612402423).

Almost surely, 2^25344156461 is an apocalyptic number.

It is an amenable number.

25344156461 is a deficient number, since it is larger than the sum of its proper divisors (3555062923).

25344156461 is a wasteful number, since it uses less digits than its factorization.

25344156461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114679471.

The product of its digits is 345600, while the sum is 41.

The spelling of 25344156461 in words is "twenty-five billion, three hundred forty-four million, one hundred fifty-six thousand, four hundred sixty-one".