11774405451809 has 32 divisors (see below), whose sum is σ = 15810433250304. Its totient is φ = 8468330690880.

The previous prime is 11774405451803. The next prime is 11774405451859. The reversal of 11774405451809 is 90815450447711.

It is a cyclic number.

It is not a de Polignac number, because 11774405451809 - 2³⁶ = 11705685975073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11774405451803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10563422 + ... + 11624744.

It is an arithmetic number, because the mean of its divisors is an integer number (494076039072).

Almost surely, 2^{11774405451809} is an apocalyptic number.

It is an amenable number.

11774405451809 is a deficient number, since it is larger than the sum of its proper divisors (4036027798495).

11774405451809 is a wasteful number, since it uses less digits than its factorization.

11774405451809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072437.

The product of its (nonzero) digits is 5644800, while the sum is 56.

The spelling of 11774405451809 in words is "eleven trillion, seven hundred seventy-four billion, four hundred five million, four hundred fifty-one thousand, eight hundred nine".