18427979070 has 24 divisors (see below), whose sum is σ = 47912745816. Its totient is φ = 4914127728.

The previous prime is 18427979057. The next prime is 18427979099. The reversal of 18427979070 is 7097972481.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18427978998 and 18427979016.

It is a congruent 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, 102377572 + ... + 102377751.

It is an arithmetic number, because the mean of its divisors is an integer number (1996364409).

Almost surely, 2^18427979070 is an apocalyptic number.

18427979070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18427979070 is an abundant number, since it is smaller than the sum of its proper divisors (29484766746).

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

18427979070 is a wasteful number, since it uses less digits than its factorization.

18427979070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204755336 (or 204755333 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 18427979070 in words is "eighteen billion, four hundred twenty-seven million, nine hundred seventy-nine thousand, seventy".