11515056743 has 12 divisors (see below), whose sum is σ = 12764102160. Its totient is φ = 10366490112.

The previous prime is 11515056737. The next prime is 11515056769. The reversal of 11515056743 is 34765051511.

It is a happy number.

It is not a de Polignac number, because 11515056743 - 2¹⁶ = 11514991207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11515056697 and 11515056706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11515055743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 859538 + ... + 872831.

It is an arithmetic number, because the mean of its divisors is an integer number (1063675180).

Almost surely, 2^11515056743 is an apocalyptic number.

11515056743 is a deficient number, since it is larger than the sum of its proper divisors (1249045417).

11515056743 is a wasteful number, since it uses less digits than its factorization.

11515056743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732426 (or 1732409 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 11515056743 in words is "eleven billion, five hundred fifteen million, fifty-six thousand, seven hundred forty-three".