18670849400 has 192 divisors, whose sum is σ = 50972570880. Its totient is φ = 6227020800.

The previous prime is 18670849367. The next prime is 18670849409. The reversal of 18670849400 is 494807681.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18670849409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19925732 + ... + 19926668.

It is an arithmetic number, because the mean of its divisors is an integer number (265482140).

Almost surely, 2^18670849400 is an apocalyptic number.

18670849400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18670849400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25486285440).

18670849400 is an abundant number, since it is smaller than the sum of its proper divisors (32301721480).

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

18670849400 is a wasteful number, since it uses less digits than its factorization.

18670849400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 18670849400 in words is "eighteen billion, six hundred seventy million, eight hundred forty-nine thousand, four hundred".