47171862054427 has 16 divisors (see below), whose sum is σ = 52319641757184. Its totient is φ = 42167745684000.

The previous prime is 47171862054391. The next prime is 47171862054433. The reversal of 47171862054427 is 72445026817174.

It is a cyclic number.

It is not a de Polignac number, because 47171862054427 - 2²³ = 47171853665819 is a prime.

It is a super-2 number, since 2×47171862054427² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47171862054437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8410099 + ... + 12848092.

It is an arithmetic number, because the mean of its divisors is an integer number (3269977609824).

Almost surely, 2^{47171862054427} is an apocalyptic number.

47171862054427 is a deficient number, since it is larger than the sum of its proper divisors (5147779702757).

47171862054427 is a wasteful number, since it uses less digits than its factorization.

47171862054427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21261570.

The product of its (nonzero) digits is 21073920, while the sum is 58.

The spelling of 47171862054427 in words is "forty-seven trillion, one hundred seventy-one billion, eight hundred sixty-two million, fifty-four thousand, four hundred twenty-seven".