47407478078 has 4 divisors (see below), whose sum is σ = 71111217120. Its totient is φ = 23703739038.

The previous prime is 47407478057. The next prime is 47407478081. The reversal of 47407478078 is 87087470474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87087470474 = 2 ⋅43543735237.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 11851869518 + ... + 11851869521.

It is an arithmetic number, because the mean of its divisors is an integer number (17777804280).

Almost surely, 2^47407478078 is an apocalyptic number.

47407478078 is a deficient number, since it is larger than the sum of its proper divisors (23703739042).

47407478078 is a wasteful number, since it uses less digits than its factorization.

47407478078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23703739041.

The product of its (nonzero) digits is 9834496, while the sum is 56.

The spelling of 47407478078 in words is "forty-seven billion, four hundred seven million, four hundred seventy-eight thousand, seventy-eight".