25749433963 has 8 divisors (see below), whose sum is σ = 28099283760. Its totient is φ = 23401082880.

The previous prime is 25749433891. The next prime is 25749433967. The reversal of 25749433963 is 36933494752.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25749433963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25749433967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338598 + ... + 407611.

It is an arithmetic number, because the mean of its divisors is an integer number (3512410470).

Almost surely, 2^25749433963 is an apocalyptic number.

25749433963 is a deficient number, since it is larger than the sum of its proper divisors (2349849797).

25749433963 is a wasteful number, since it uses less digits than its factorization.

25749433963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749357.

The product of its digits is 14696640, while the sum is 55.

The spelling of 25749433963 in words is "twenty-five billion, seven hundred forty-nine million, four hundred thirty-three thousand, nine hundred sixty-three".