47445772771 has 8 divisors (see below), whose sum is σ = 49175141840. Its totient is φ = 45739932768.

The previous prime is 47445772763. The next prime is 47445772873. The reversal of 47445772771 is 17727754474.

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 47445772771 - 2³ = 47445772763 is a prime.

It is a super-2 number, since 2×47445772771² (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 (47445775771) 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, 5878161 + ... + 5886226.

It is an arithmetic number, because the mean of its divisors is an integer number (6146892730).

Almost surely, 2^47445772771 is an apocalyptic number.

47445772771 is a deficient number, since it is larger than the sum of its proper divisors (1729369069).

47445772771 is a wasteful number, since it uses less digits than its factorization.

47445772771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11764533.

The product of its digits is 10756480, while the sum is 55.

The spelling of 47445772771 in words is "forty-seven billion, four hundred forty-five million, seven hundred seventy-two thousand, seven hundred seventy-one".