47929348778 has 16 divisors (see below), whose sum is σ = 71993287080. Its totient is φ = 23931612096.

The previous prime is 47929348759. The next prime is 47929348781. The reversal of 47929348778 is 87784392974.

It can be written as a sum of positive squares in 4 ways, for example, as 33155675569 + 14773673209 = 182087^2 + 121547^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4948076 + ... + 4957752.

Almost surely, 2^47929348778 is an apocalyptic number.

47929348778 is a deficient number, since it is larger than the sum of its proper divisors (24063938302).

47929348778 is a wasteful number, since it uses less digits than its factorization.

47929348778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12841.

The product of its digits is 170698752, while the sum is 68.

The spelling of 47929348778 in words is "forty-seven billion, nine hundred twenty-nine million, three hundred forty-eight thousand, seven hundred seventy-eight".