47138994553 has 8 divisors (see below), whose sum is σ = 54972588800. Its totient is φ = 40404852180.

The previous prime is 47138994521. The next prime is 47138994589. The reversal of 47138994553 is 35549983174.

It is a happy number.

It is not a de Polignac number, because 47138994553 - 2⁵ = 47138994521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47138994653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68715393 + ... + 68716078.

It is an arithmetic number, because the mean of its divisors is an integer number (6871573600).

Almost surely, 2^47138994553 is an apocalyptic number.

It is an amenable number.

47138994553 is a deficient number, since it is larger than the sum of its proper divisors (7833594247).

47138994553 is an equidigital number, since it uses as much as digits as its factorization.

47138994553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137431492 (or 137431478 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 58.

The spelling of 47138994553 in words is "forty-seven billion, one hundred thirty-eight million, nine hundred ninety-four thousand, five hundred fifty-three".