18433083478040 has 512 divisors, whose sum is σ = 55148175820800. Its totient is φ = 5368191221760.

The previous prime is 18433083478039. The next prime is 18433083478079. The reversal of 18433083478040 is 4087438033481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9230386322 + ... + 9230388318.

It is an arithmetic number, because the mean of its divisors is an integer number (107711280900).

Almost surely, 2^{18433083478040} is an apocalyptic number.

18433083478040 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 18433083478040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27574087910400).

18433083478040 is an abundant number, since it is smaller than the sum of its proper divisors (36715092342760).

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

18433083478040 is a wasteful number, since it uses less digits than its factorization.

18433083478040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235 (or 3231 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 53.

The spelling of 18433083478040 in words is "eighteen trillion, four hundred thirty-three billion, eighty-three million, four hundred seventy-eight thousand, forty".