18033796540 has 24 divisors (see below), whose sum is σ = 37972519200. Its totient is φ = 7194176448.

The previous prime is 18033796513. The next prime is 18033796567. The reversal of 18033796540 is 4569733081.

It is an interprime number because it is at equal distance from previous prime (18033796513) and next prime (18033796567).

It is a super-2 number, since 2×18033796540² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1201240 + ... + 1216159.

It is an arithmetic number, because the mean of its divisors is an integer number (1582188300).

Almost surely, 2^18033796540 is an apocalyptic number.

18033796540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18033796540 is an abundant number, since it is smaller than the sum of its proper divisors (19938722660).

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

18033796540 is a wasteful number, since it uses less digits than its factorization.

18033796540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417781 (or 2417779 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 18033796540 in words is "eighteen billion, thirty-three million, seven hundred ninety-six thousand, five hundred forty".