18134562850 has 24 divisors (see below), whose sum is σ = 33733915668. Its totient is φ = 7253044800.

The previous prime is 18134562833. The next prime is 18134562857. The reversal of 18134562850 is 5826543181.

It can be written as a sum of positive squares in 6 ways, for example, as 8508402081 + 9626160769 = 92241^2 + 98113^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18134562797 and 18134562806.

It is not an unprimeable number, because it can be changed into a prime (18134562857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 751980 + ... + 775720.

Almost surely, 2^18134562850 is an apocalyptic number.

18134562850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18134562850 is a deficient number, since it is larger than the sum of its proper divisors (15599352818).

18134562850 is a wasteful number, since it uses less digits than its factorization.

18134562850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39030 (or 39025 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 18134562850 in words is "eighteen billion, one hundred thirty-four million, five hundred sixty-two thousand, eight hundred fifty".