25943198498 has 16 divisors (see below), whose sum is σ = 44740370304. Its totient is φ = 11051934720.

The previous prime is 25943198497. The next prime is 25943198549. The reversal of 25943198498 is 89489134952.

It is a self number, because there is not a number n which added to its sum of digits gives 25943198498.

It is not an unprimeable number, because it can be changed into a prime (25943198497) 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, 5545823 + ... + 5550498.

It is an arithmetic number, because the mean of its divisors is an integer number (2796273144).

Almost surely, 2^25943198498 is an apocalyptic number.

25943198498 is a deficient number, since it is larger than the sum of its proper divisors (18797171806).

25943198498 is a wasteful number, since it uses less digits than its factorization.

25943198498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11096497.

The product of its digits is 22394880, while the sum is 62.

The spelling of 25943198498 in words is "twenty-five billion, nine hundred forty-three million, one hundred ninety-eight thousand, four hundred ninety-eight".