47719143481 has 4 divisors (see below), whose sum is σ = 48372830452. Its totient is φ = 47065456512.

The previous prime is 47719143443. The next prime is 47719143499. The reversal of 47719143481 is 18434191774.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16670941456 + 31048202025 = 129116^2 + 176205^2 .

It is a cyclic number.

It is not a de Polignac number, because 47719143481 - 2⁹ = 47719142969 is a prime.

It is a super-2 number, since 2×47719143481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47719143401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326843376 + ... + 326843521.

It is an arithmetic number, because the mean of its divisors is an integer number (12093207613).

Almost surely, 2^47719143481 is an apocalyptic number.

It is an amenable number.

47719143481 is a deficient number, since it is larger than the sum of its proper divisors (653686971).

47719143481 is an equidigital number, since it uses as much as digits as its factorization.

47719143481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653686970.

The product of its digits is 677376, while the sum is 49.

The spelling of 47719143481 in words is "forty-seven billion, seven hundred nineteen million, one hundred forty-three thousand, four hundred eighty-one".