47855447731 has 16 divisors (see below), whose sum is σ = 59022028800. Its totient is φ = 37784569248.

The previous prime is 47855447713. The next prime is 47855447741. The reversal of 47855447731 is 13774455874.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 47855447731 - 2¹³ = 47855439539 is a prime.

It is a super-2 number, since 2×47855447731² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47855447741) 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 15 ways as a sum of consecutive naturals, for example, 505351 + ... + 592528.

It is an arithmetic number, because the mean of its divisors is an integer number (3688876800).

Almost surely, 2^47855447731 is an apocalyptic number.

47855447731 is a deficient number, since it is larger than the sum of its proper divisors (11166581069).

47855447731 is a wasteful number, since it uses less digits than its factorization.

47855447731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098378.

The product of its digits is 13171200, while the sum is 55.

The spelling of 47855447731 in words is "forty-seven billion, eight hundred fifty-five million, four hundred forty-seven thousand, seven hundred thirty-one".