11477064861 has 6 divisors (see below), whose sum is σ = 16577982590. Its totient is φ = 7651376568.

The previous prime is 11477064773. The next prime is 11477064901. The reversal of 11477064861 is 16846077411.

It can be written as a sum of positive squares in only one way, i.e., 11216080836 + 260984025 = 105906^2 + 16155^2 .

It is not a de Polignac number, because 11477064861 - 2⁹ = 11477064349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11477064461) 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, 637614706 + ... + 637614723.

Almost surely, 2^11477064861 is an apocalyptic number.

It is an amenable number.

11477064861 is a deficient number, since it is larger than the sum of its proper divisors (5100917729).

11477064861 is a wasteful number, since it uses less digits than its factorization.

11477064861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275229435 (or 1275229432 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 11477064861 in words is "eleven billion, four hundred seventy-seven million, sixty-four thousand, eight hundred sixty-one".