47555617242169 has 8 divisors (see below), whose sum is σ = 47671945271432. Its totient is φ = 47439305182080.

The previous prime is 47555617242157. The next prime is 47555617242223. The reversal of 47555617242169 is 96124271655574.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50949518400 + 47504667723769 = 225720^2 + 6892363^2 .

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 47555617242169 - 2¹⁹ = 47555616717881 is a prime.

It is a super-2 number, since 2×47555617242169² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47555617242169.

It is not an unprimeable number, because it can be changed into a prime (47555617242139) 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, 1981837 + ... + 9951829.

It is an arithmetic number, because the mean of its divisors is an integer number (5958993158929).

Almost surely, 2^{47555617242169} is an apocalyptic number.

It is an amenable number.

47555617242169 is a deficient number, since it is larger than the sum of its proper divisors (116328029263).

47555617242169 is a wasteful number, since it uses less digits than its factorization.

47555617242169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7984587.

The product of its digits is 127008000, while the sum is 64.

The spelling of 47555617242169 in words is "forty-seven trillion, five hundred fifty-five billion, six hundred seventeen million, two hundred forty-two thousand, one hundred sixty-nine".