18150740421880 has 128 divisors (see below), whose sum is σ = 44855366604480. Its totient is φ = 6555410104320.

The previous prime is 18150740421857. The next prime is 18150740421883. The reversal of 18150740421880 is 8812404705181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18150740421883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52222432 + ... + 52568848.

Almost surely, 2^{18150740421880} is an apocalyptic number.

18150740421880 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 18150740421880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22427683302240).

18150740421880 is an abundant number, since it is smaller than the sum of its proper divisors (26704626182600).

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

18150740421880 is a wasteful number, since it uses less digits than its factorization.

18150740421880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347249 (or 347245 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 49.

The spelling of 18150740421880 in words is "eighteen trillion, one hundred fifty billion, seven hundred forty million, four hundred twenty-one thousand, eight hundred eighty".