18469741290 has 768 divisors, whose sum is σ = 66665078784. Its totient is φ = 3189288960.

The previous prime is 18469741253. The next prime is 18469741291. The reversal of 18469741290 is 9214796481.

It is a super-2 number, since 2×18469741290² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18469741291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 803032219 + ... + 803032241.

It is an arithmetic number, because the mean of its divisors is an integer number (86803488).

Almost surely, 2^18469741290 is an apocalyptic number.

18469741290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18469741290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33332539392).

18469741290 is an abundant number, since it is smaller than the sum of its proper divisors (48195337494).

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

18469741290 is a wasteful number, since it uses less digits than its factorization.

18469741290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 18469741290 in words is "eighteen billion, four hundred sixty-nine million, seven hundred forty-one thousand, two hundred ninety".