47720063381 has 8 divisors (see below), whose sum is σ = 48519655704. Its totient is φ = 46921029120.

The previous prime is 47720063371. The next prime is 47720063411. The reversal of 47720063381 is 18336002774.

It can be written as a sum of positive squares in 4 ways, for example, as 5187600625 + 42532462756 = 72025^2 + 206234^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 47720063381 - 2²² = 47715869077 is a prime.

It is a super-2 number, since 2×47720063381² (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 (47720063341) 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 7 ways as a sum of consecutive naturals, for example, 34745 + ... + 310881.

It is an arithmetic number, because the mean of its divisors is an integer number (6064956963).

Almost surely, 2^47720063381 is an apocalyptic number.

It is an amenable number.

47720063381 is a deficient number, since it is larger than the sum of its proper divisors (799592323).

47720063381 is a wasteful number, since it uses less digits than its factorization.

47720063381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279031.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 47720063381 in words is "forty-seven billion, seven hundred twenty million, sixty-three thousand, three hundred eighty-one".