18280481558070 has 64 divisors (see below), whose sum is σ = 44475960095424. Its totient is φ = 4807822233600.

The previous prime is 18280481557993. The next prime is 18280481558077. The reversal of 18280481558070 is 7085518408281.

It is a self number, because there is not a number n which added to its sum of digits gives 18280481558070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18280481558077) 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, 58538464 + ... + 58849916.

It is an arithmetic number, because the mean of its divisors is an integer number (694936876491).

Almost surely, 2^{18280481558070} is an apocalyptic number.

18280481558070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18280481558070 is an abundant number, since it is smaller than the sum of its proper divisors (26195478537354).

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

18280481558070 is a wasteful number, since it uses less digits than its factorization.

18280481558070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338337.

The product of its (nonzero) digits is 5734400, while the sum is 57.

The spelling of 18280481558070 in words is "eighteen trillion, two hundred eighty billion, four hundred eighty-one million, five hundred fifty-eight thousand, seventy".