18252859101378 has 24 divisors (see below), whose sum is σ = 40126120009584. Its totient is φ = 5531169424440.

The previous prime is 18252859101353. The next prime is 18252859101413. The reversal of 18252859101378 is 87310195825281.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12570838876 + ... + 12570840327.

It is an arithmetic number, because the mean of its divisors is an integer number (1671921667066).

Almost surely, 2^{18252859101378} is an apocalyptic number.

18252859101378 is an abundant number, since it is smaller than the sum of its proper divisors (21873260908206).

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

18252859101378 is a wasteful number, since it uses less digits than its factorization.

18252859101378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25141679230 (or 25141679219 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 60.

The spelling of 18252859101378 in words is "eighteen trillion, two hundred fifty-two billion, eight hundred fifty-nine million, one hundred one thousand, three hundred seventy-eight".