47918402749 has 4 divisors (see below), whose sum is σ = 54763888864. Its totient is φ = 41072916636.

The previous prime is 47918402717. The next prime is 47918402759. The reversal of 47918402749 is 94720481974.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94720481974 = 2 ⋅47360240987.

It is a cyclic number.

It is not a de Polignac number, because 47918402749 - 2⁵ = 47918402717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47918402749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47918402759) 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 in 3 ways as a sum of consecutive naturals, for example, 3422743047 + ... + 3422743060.

It is an arithmetic number, because the mean of its divisors is an integer number (13690972216).

Almost surely, 2^47918402749 is an apocalyptic number.

It is an amenable number.

47918402749 is a deficient number, since it is larger than the sum of its proper divisors (6845486115).

47918402749 is an equidigital number, since it uses as much as digits as its factorization.

47918402749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6845486114.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 47918402749 in words is "forty-seven billion, nine hundred eighteen million, four hundred two thousand, seven hundred forty-nine".