47390678623 has 4 divisors (see below), whose sum is σ = 47397749080. Its totient is φ = 47383608168.

The previous prime is 47390678611. The next prime is 47390678641. The reversal of 47390678623 is 32687609374.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47390678623 is a prime.

It is a super-2 number, since 2×47390678623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47390678603) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3525165 + ... + 3538582.

It is an arithmetic number, because the mean of its divisors is an integer number (11849437270).

Almost surely, 2^47390678623 is an apocalyptic number.

47390678623 is a deficient number, since it is larger than the sum of its proper divisors (7070457).

47390678623 is an equidigital number, since it uses as much as digits as its factorization.

47390678623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7070456.

The product of its (nonzero) digits is 9144576, while the sum is 55.

The spelling of 47390678623 in words is "forty-seven billion, three hundred ninety million, six hundred seventy-eight thousand, six hundred twenty-three".