47158439809 has 16 divisors (see below), whose sum is σ = 52315441920. Its totient is φ = 42231795840.

The previous prime is 47158439803. The next prime is 47158439863. The reversal of 47158439809 is 90893485174.

It is not a de Polignac number, because 47158439809 - 2⁵ = 47158439777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47158439803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151737 + ... + 342550.

It is an arithmetic number, because the mean of its divisors is an integer number (3269715120).

Almost surely, 2^47158439809 is an apocalyptic number.

It is an amenable number.

47158439809 is a deficient number, since it is larger than the sum of its proper divisors (5157002111).

47158439809 is a wasteful number, since it uses less digits than its factorization.

47158439809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494520.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 47158439809 in words is "forty-seven billion, one hundred fifty-eight million, four hundred thirty-nine thousand, eight hundred nine".