1118016426949 has 4 divisors (see below), whose sum is σ = 1119317960320. Its totient is φ = 1116714893580.

The previous prime is 1118016426911. The next prime is 1118016426959. The reversal of 1118016426949 is 9496246108111.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 1118016426949 - 2²³ = 1118008038341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1118016426896 and 1118016426905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118016426959) 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, 650765397 + ... + 650767114.

It is an arithmetic number, because the mean of its divisors is an integer number (279829490080).

Almost surely, 2^{1118016426949} is an apocalyptic number.

It is an amenable number.

1118016426949 is a deficient number, since it is larger than the sum of its proper divisors (1301533371).

1118016426949 is an equidigital number, since it uses as much as digits as its factorization.

1118016426949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301533370.

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 1118016426949 in words is "one trillion, one hundred eighteen billion, sixteen million, four hundred twenty-six thousand, nine hundred forty-nine".