1109029797738 has 40 divisors (see below), whose sum is σ = 2485111444068. Its totient is φ = 369667198656.

The previous prime is 1109029797737. The next prime is 1109029797739. The reversal of 1109029797738 is 8377979209011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1109029797737) and next prime (1109029797739).

It can be written as a sum of positive squares in 2 ways, for example, as 1108941681969 + 88115769 = 1053063^2 + 9387^2 .

It is not an unprimeable number, because it can be changed into a prime (1109029797731) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9665070 + ... + 9779142.

Almost surely, 2^{1109029797738} is an apocalyptic number.

1109029797738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1109029797738 is an abundant number, since it is smaller than the sum of its proper divisors (1376081646330).

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

1109029797738 is a wasteful number, since it uses less digits than its factorization.

1109029797738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174100 (or 174091 counting only the distinct ones).

The product of its (nonzero) digits is 12002256, while the sum is 63.

The spelling of 1109029797738 in words is "one trillion, one hundred nine billion, twenty-nine million, seven hundred ninety-seven thousand, seven hundred thirty-eight".