25178494098 has 16 divisors (see below), whose sum is σ = 50509128096. Its totient is φ = 8367474720.

The previous prime is 25178494091. The next prime is 25178494141. The reversal of 25178494098 is 89049487152.

It is not an unprimeable number, because it can be changed into a prime (25178494091) 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, 6337011 + ... + 6340982.

It is an arithmetic number, because the mean of its divisors is an integer number (3156820506).

Almost surely, 2^25178494098 is an apocalyptic number.

25178494098 is an abundant number, since it is smaller than the sum of its proper divisors (25330633998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25178494098 is a wasteful number, since it uses less digits than its factorization.

25178494098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12678329.

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 25178494098 in words is "twenty-five billion, one hundred seventy-eight million, four hundred ninety-four thousand, ninety-eight".