1018218480390 has 64 divisors (see below), whose sum is σ = 2727106430400. Its totient is φ = 270339213312.

The previous prime is 1018218480341. The next prime is 1018218480397. The reversal of 1018218480390 is 930848128101.

1018218480390 is a `hidden beast` number, since 1 + 0 + 1 + 8 + 2 + 184 + 80 + 390 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018218480397) 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, 8172187 + ... + 8295846.

It is an arithmetic number, because the mean of its divisors is an integer number (42611037975).

Almost surely, 2^{1018218480390} is an apocalyptic number.

1018218480390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1018218480390 is an abundant number, since it is smaller than the sum of its proper divisors (1708887950010).

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

1018218480390 is a wasteful number, since it uses less digits than its factorization.

1018218480390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16468278 (or 16468272 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 1018218480390 in words is "one trillion, eighteen billion, two hundred eighteen million, four hundred eighty thousand, three hundred ninety".