47876431492969 has 4 divisors (see below), whose sum is σ = 50692692169044. Its totient is φ = 45060170816896.

The previous prime is 47876431492961. The next prime is 47876431493029. The reversal of 47876431492969 is 96929413467874.

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 38412563697369 + 9463867795600 = 6197787^2 + 3076340^2 .

It is a cyclic number.

It is not a de Polignac number, because 47876431492969 - 2³ = 47876431492961 is a prime.

It is a super-2 number, since 2×47876431492969² (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 (47876431492961) 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, 1408130338012 + ... + 1408130338045.

It is an arithmetic number, because the mean of its divisors is an integer number (12673173042261).

Almost surely, 2^{47876431492969} is an apocalyptic number.

It is an amenable number.

47876431492969 is a deficient number, since it is larger than the sum of its proper divisors (2816260676075).

47876431492969 is a wasteful number, since it uses less digits than its factorization.

47876431492969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816260676074.

The product of its digits is 3950456832, while the sum is 79.

The spelling of 47876431492969 in words is "forty-seven trillion, eight hundred seventy-six billion, four hundred thirty-one million, four hundred ninety-two thousand, nine hundred sixty-nine".