11773336477 has 6 divisors (see below), whose sum is σ = 13695513918. Its totient is φ = 10091431224.

The previous prime is 11773336459. The next prime is 11773336517. The reversal of 11773336477 is 77463337711.

It can be written as a sum of positive squares in only one way, i.e., 10497846681 + 1275489796 = 102459^2 + 35714^2 .

It is not a de Polignac number, because 11773336477 - 2¹¹ = 11773334429 is a prime.

It is a super-2 number, since 2×11773336477² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 240272173 = 11773336477 / (1 + 1 + 7 + 7 + 3 + 3 + 3 + 6 + 4 + 7 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11773336477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11773336777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120136038 + ... + 120136135.

It is an arithmetic number, because the mean of its divisors is an integer number (2282585653).

Almost surely, 2^11773336477 is an apocalyptic number.

It is an amenable number.

11773336477 is a deficient number, since it is larger than the sum of its proper divisors (1922177441).

11773336477 is an equidigital number, since it uses as much as digits as its factorization.

11773336477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240272187 (or 240272180 counting only the distinct ones).

The product of its digits is 1555848, while the sum is 49.

The spelling of 11773336477 in words is "eleven billion, seven hundred seventy-three million, three hundred thirty-six thousand, four hundred seventy-seven".