47991174426 has 24 divisors (see below), whose sum is σ = 111979407540. Its totient is φ = 14766515136.

The previous prime is 47991174419. The next prime is 47991174449. The reversal of 47991174426 is 62447119974.

47991174426 is a `hidden beast` number, since 47 + 9 + 9 + 1 + 174 + 426 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34950676401 + 13040498025 = 186951^2 + 114195^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102545011 + ... + 102545478.

Almost surely, 2^47991174426 is an apocalyptic number.

47991174426 is an abundant number, since it is smaller than the sum of its proper divisors (63988233114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47991174426 is a wasteful number, since it uses less digits than its factorization.

47991174426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205090510 (or 205090507 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 47991174426 in words is "forty-seven billion, nine hundred ninety-one million, one hundred seventy-four thousand, four hundred twenty-six".