25490470843 has 16 divisors (see below), whose sum is σ = 27516690432. Its totient is φ = 23544180000.

The previous prime is 25490470807. The next prime is 25490470867. The reversal of 25490470843 is 34807409452.

It is a happy number.

It is not a de Polignac number, because 25490470843 - 2³³ = 16900536251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25490470793 and 25490470802.

It is not an unprimeable number, because it can be changed into a prime (25490470043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289918 + ... + 367468.

It is an arithmetic number, because the mean of its divisors is an integer number (1719793152).

Almost surely, 2^25490470843 is an apocalyptic number.

25490470843 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25490470843 is a deficient number, since it is larger than the sum of its proper divisors (2026219589).

25490470843 is a wasteful number, since it uses less digits than its factorization.

25490470843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78066.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 25490470843 in words is "twenty-five billion, four hundred ninety million, four hundred seventy thousand, eight hundred forty-three".