47821786449 has 8 divisors (see below), whose sum is σ = 63766671360. Its totient is φ = 31879046256.

The previous prime is 47821786447. The next prime is 47821786457. The reversal of 47821786449 is 94468712874.

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

It is not a de Polignac number, because 47821786449 - 2¹ = 47821786447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47821786392 and 47821786401.

It is not an unprimeable number, because it can be changed into a prime (47821786447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483409 + ... + 573870.

It is an arithmetic number, because the mean of its divisors is an integer number (7970833920).

Almost surely, 2^47821786449 is an apocalyptic number.

It is an amenable number.

47821786449 is a deficient number, since it is larger than the sum of its proper divisors (15944884911).

47821786449 is a wasteful number, since it uses less digits than its factorization.

47821786449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072359.

The product of its digits is 21676032, while the sum is 60.

The spelling of 47821786449 in words is "forty-seven billion, eight hundred twenty-one million, seven hundred eighty-six thousand, four hundred forty-nine".