47099138939 has 4 divisors (see below), whose sum is σ = 47112451080. Its totient is φ = 47085826800.

The previous prime is 47099138929. The next prime is 47099138981. The reversal of 47099138939 is 93983199074.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93983199074 = 2 ⋅46991599537.

It is a cyclic number.

It is not a de Polignac number, because 47099138939 - 2¹⁶ = 47099073403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47099138929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6650762 + ... + 6657839.

It is an arithmetic number, because the mean of its divisors is an integer number (11778112770).

Almost surely, 2^47099138939 is an apocalyptic number.

47099138939 is a deficient number, since it is larger than the sum of its proper divisors (13312141).

47099138939 is a wasteful number, since it uses less digits than its factorization.

47099138939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13312140.

The product of its (nonzero) digits is 13226976, while the sum is 62.

The spelling of 47099138939 in words is "forty-seven billion, ninety-nine million, one hundred thirty-eight thousand, nine hundred thirty-nine".