1138270807749 has 16 divisors (see below), whose sum is σ = 1524397547520. Its totient is φ = 755495966400.

The previous prime is 1138270807747. The next prime is 1138270807753. The reversal of 1138270807749 is 9477080728311.

It is not a de Polignac number, because 1138270807749 - 2¹ = 1138270807747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138270807747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24246199 + ... + 24293099.

It is an arithmetic number, because the mean of its divisors is an integer number (95274846720).

Almost surely, 2^{1138270807749} is an apocalyptic number.

It is an amenable number.

1138270807749 is a deficient number, since it is larger than the sum of its proper divisors (386126739771).

1138270807749 is a wasteful number, since it uses less digits than its factorization.

1138270807749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82460.

The product of its (nonzero) digits is 4741632, while the sum is 57.

The spelling of 1138270807749 in words is "one trillion, one hundred thirty-eight billion, two hundred seventy million, eight hundred seven thousand, seven hundred forty-nine".