25943198473 has 16 divisors (see below), whose sum is σ = 27380073600. Its totient is φ = 24533491840.

The previous prime is 25943198459. The next prime is 25943198497. The reversal of 25943198473 is 37489134952.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25943198473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25943198423) 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, 794493 + ... + 826501.

It is an arithmetic number, because the mean of its divisors is an integer number (1711254600).

Almost surely, 2^25943198473 is an apocalyptic number.

25943198473 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25943198473 is a deficient number, since it is larger than the sum of its proper divisors (1436875127).

25943198473 is a wasteful number, since it uses less digits than its factorization.

25943198473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32432.

The product of its digits is 6531840, while the sum is 55.

The spelling of 25943198473 in words is "twenty-five billion, nine hundred forty-three million, one hundred ninety-eight thousand, four hundred seventy-three".