47821746831 has 8 divisors (see below), whose sum is σ = 64004772480. Its totient is φ = 31759942872.

The previous prime is 47821746751. The next prime is 47821746839. The reversal of 47821746831 is 13864712874.

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

It is not a de Polignac number, because 47821746831 - 2¹⁷ = 47821615759 is a prime.

It is a super-2 number, since 2×47821746831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47821746839) 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 7 ways as a sum of consecutive naturals, for example, 30304501 + ... + 30306078.

It is an arithmetic number, because the mean of its divisors is an integer number (8000596560).

Almost surely, 2^47821746831 is an apocalyptic number.

47821746831 is a deficient number, since it is larger than the sum of its proper divisors (16183025649).

47821746831 is a wasteful number, since it uses less digits than its factorization.

47821746831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60610845.

The product of its digits is 1806336, while the sum is 51.

The spelling of 47821746831 in words is "forty-seven billion, eight hundred twenty-one million, seven hundred forty-six thousand, eight hundred thirty-one".