71877351145 has 16 divisors (see below), whose sum is σ = 86639489280. Its totient is φ = 57244247424.

The previous prime is 71877351103. The next prime is 71877351173. The reversal of 71877351145 is 54115377817.

It is a cyclic number.

It is not a de Polignac number, because 71877351145 - 2⁷ = 71877351017 is a prime.

It is a super-2 number, since 2×71877351145² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5350477 + ... + 5363893.

It is an arithmetic number, because the mean of its divisors is an integer number (5414968080).

Almost surely, 2^71877351145 is an apocalyptic number.

It is an amenable number.

71877351145 is a deficient number, since it is larger than the sum of its proper divisors (14762138135).

71877351145 is a wasteful number, since it uses less digits than its factorization.

71877351145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18144.

The product of its digits is 823200, while the sum is 49.

The spelling of 71877351145 in words is "seventy-one billion, eight hundred seventy-seven million, three hundred fifty-one thousand, one hundred forty-five".