1018261728130 has 8 divisors (see below), whose sum is σ = 1832871110652. Its totient is φ = 407304691248.

The previous prime is 1018261728109. The next prime is 1018261728149. The reversal of 1018261728130 is 318271628101.

It can be written as a sum of positive squares in 2 ways, for example, as 1017312287161 + 949440969 = 1008619^2 + 30813^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50913086397 + ... + 50913086416.

Almost surely, 2^{1018261728130} is an apocalyptic number.

1018261728130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1018261728130 is a deficient number, since it is larger than the sum of its proper divisors (814609382522).

1018261728130 is a wasteful number, since it uses less digits than its factorization.

1018261728130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101826172820.

The product of its (nonzero) digits is 32256, while the sum is 40.

The spelling of 1018261728130 in words is "one trillion, eighteen billion, two hundred sixty-one million, seven hundred twenty-eight thousand, one hundred thirty".