18827224870 has 16 divisors (see below), whose sum is σ = 34353239040. Its totient is φ = 7427726784.

The previous prime is 18827224859. The next prime is 18827224883. The reversal of 18827224870 is 7842272881.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12894630 + ... + 12896089.

It is an arithmetic number, because the mean of its divisors is an integer number (2147077440).

Almost surely, 2^18827224870 is an apocalyptic number.

18827224870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18827224870 is a deficient number, since it is larger than the sum of its proper divisors (15526014170).

18827224870 is a wasteful number, since it uses less digits than its factorization.

18827224870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25790799.

The product of its (nonzero) digits is 802816, while the sum is 49.

The spelling of 18827224870 in words is "eighteen billion, eight hundred twenty-seven million, two hundred twenty-four thousand, eight hundred seventy".