47738351378 has 4 divisors (see below), whose sum is σ = 71607527070. Its totient is φ = 23869175688.

The previous prime is 47738351377. The next prime is 47738351399. The reversal of 47738351378 is 87315383774.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30177596089 + 17560755289 = 173717^2 + 132517^2 .

It is not an unprimeable number, because it can be changed into a prime (47738351377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11934587843 + ... + 11934587846.

Almost surely, 2^47738351378 is an apocalyptic number.

47738351378 is a deficient number, since it is larger than the sum of its proper divisors (23869175692).

47738351378 is a wasteful number, since it uses less digits than its factorization.

47738351378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23869175691.

The product of its digits is 11854080, while the sum is 56.

The spelling of 47738351378 in words is "forty-seven billion, seven hundred thirty-eight million, three hundred fifty-one thousand, three hundred seventy-eight".