1017428835181 has 4 divisors (see below), whose sum is σ = 1109922365664. Its totient is φ = 924935304700.

The previous prime is 1017428835139. The next prime is 1017428835251. The reversal of 1017428835181 is 1815388247101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1017428835181 - 2²⁵ = 1017395280749 is a prime.

It is a super-2 number, since 2×1017428835181² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1017428835581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46246765225 + ... + 46246765246.

It is an arithmetic number, because the mean of its divisors is an integer number (277480591416).

Almost surely, 2^{1017428835181} is an apocalyptic number.

1017428835181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1017428835181 is a deficient number, since it is larger than the sum of its proper divisors (92493530483).

1017428835181 is an equidigital number, since it uses as much as digits as its factorization.

1017428835181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92493530482.

The product of its (nonzero) digits is 430080, while the sum is 49.

The spelling of 1017428835181 in words is "one trillion, seventeen billion, four hundred twenty-eight million, eight hundred thirty-five thousand, one hundred eighty-one".