47826091787 has 4 divisors (see below), whose sum is σ = 48843668256. Its totient is φ = 46808515320.

The previous prime is 47826091769. The next prime is 47826091811. The reversal of 47826091787 is 78719062874.

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

It is a cyclic number.

It is not a de Polignac number, because 47826091787 - 2⁸ = 47826091531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47826091387) 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 in 3 ways as a sum of consecutive naturals, for example, 508788164 + ... + 508788257.

It is an arithmetic number, because the mean of its divisors is an integer number (12210917064).

Almost surely, 2^47826091787 is an apocalyptic number.

47826091787 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

47826091787 is a deficient number, since it is larger than the sum of its proper divisors (1017576469).

47826091787 is a wasteful number, since it uses less digits than its factorization.

47826091787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017576468.

The product of its (nonzero) digits is 9483264, while the sum is 59.

The spelling of 47826091787 in words is "forty-seven billion, eight hundred twenty-six million, ninety-one thousand, seven hundred eighty-seven".