51047894078 has 8 divisors (see below), whose sum is σ = 76577083320. Its totient is φ = 25522199640.

The previous prime is 51047894077. The next prime is 51047894137. The reversal of 51047894078 is 87049874015.

It is a happy number.

51047894078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51047894077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836873 + ... + 895796.

It is an arithmetic number, because the mean of its divisors is an integer number (9572135415).

Almost surely, 2^51047894078 is an apocalyptic number.

51047894078 is a deficient number, since it is larger than the sum of its proper divisors (25529189242).

51047894078 is a wasteful number, since it uses less digits than its factorization.

51047894078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747402.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 51047894078 in words is "fifty-one billion, forty-seven million, eight hundred ninety-four thousand, seventy-eight".