47451093842 has 4 divisors (see below), whose sum is σ = 71176640766. Its totient is φ = 23725546920.

The previous prime is 47451093841. The next prime is 47451093847. The reversal of 47451093842 is 24839015474.

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., 46298559241 + 1152534601 = 215171^2 + 33949^2 .

It is not an unprimeable number, because it can be changed into a prime (47451093841) 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, 11862773459 + ... + 11862773462.

Almost surely, 2^47451093842 is an apocalyptic number.

47451093842 is a deficient number, since it is larger than the sum of its proper divisors (23725546924).

47451093842 is a wasteful number, since it uses less digits than its factorization.

47451093842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23725546923.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 47451093842 in words is "forty-seven billion, four hundred fifty-one million, ninety-three thousand, eight hundred forty-two".