47962139494 has 4 divisors (see below), whose sum is σ = 71943209244. Its totient is φ = 23981069746.

The previous prime is 47962139483. The next prime is 47962139497. The reversal of 47962139494 is 49493126974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49493126974 = 2 ⋅24746563487.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47962139497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11990534872 + ... + 11990534875.

It is an arithmetic number, because the mean of its divisors is an integer number (17985802311).

Almost surely, 2^47962139494 is an apocalyptic number.

47962139494 is a deficient number, since it is larger than the sum of its proper divisors (23981069750).

47962139494 is a wasteful number, since it uses less digits than its factorization.

47962139494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23981069749.

The product of its digits is 11757312, while the sum is 58.

The spelling of 47962139494 in words is "forty-seven billion, nine hundred sixty-two million, one hundred thirty-nine thousand, four hundred ninety-four".