11472820047 has 32 divisors (see below), whose sum is σ = 18352723200. Its totient is φ = 7041486816.

The previous prime is 11472820033. The next prime is 11472820057. The reversal of 11472820047 is 74002827411.

It is not a de Polignac number, because 11472820047 - 2⁴ = 11472820031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11472819993 and 11472820020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11472820057) 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, 89908 + ... + 176150.

It is an arithmetic number, because the mean of its divisors is an integer number (573522600).

Almost surely, 2^11472820047 is an apocalyptic number.

11472820047 is a deficient number, since it is larger than the sum of its proper divisors (6879903153).

11472820047 is a wasteful number, since it uses less digits than its factorization.

11472820047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86644 (or 86638 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The spelling of 11472820047 in words is "eleven billion, four hundred seventy-two million, eight hundred twenty thousand, forty-seven".