11771408864738 has 16 divisors (see below), whose sum is σ = 17668884870720. Its totient is φ = 5881780918416.

The previous prime is 11771408864713. The next prime is 11771408864749. The reversal of 11771408864738 is 83746880417711.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80987093 + ... + 81132311.

It is an arithmetic number, because the mean of its divisors is an integer number (1104305304420).

Almost surely, 2^{11771408864738} is an apocalyptic number.

11771408864738 is a deficient number, since it is larger than the sum of its proper divisors (5897476005982).

11771408864738 is a wasteful number, since it uses less digits than its factorization.

11771408864738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171961.

The product of its (nonzero) digits is 50577408, while the sum is 65.

The spelling of 11771408864738 in words is "eleven trillion, seven hundred seventy-one billion, four hundred eight million, eight hundred sixty-four thousand, seven hundred thirty-eight".