71877963249 has 32 divisors (see below), whose sum is σ = 108785664000. Its totient is φ = 46884377232.

The previous prime is 71877963247. The next prime is 71877963271. The reversal of 71877963249 is 94236977817.

It is not a de Polignac number, because 71877963249 - 2¹ = 71877963247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71877963247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5270962 + ... + 5284580.

It is an arithmetic number, because the mean of its divisors is an integer number (3399552000).

Almost surely, 2^71877963249 is an apocalyptic number.

It is an amenable number.

71877963249 is a deficient number, since it is larger than the sum of its proper divisors (36907700751).

71877963249 is a wasteful number, since it uses less digits than its factorization.

71877963249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17834 (or 17828 counting only the distinct ones).

The product of its digits is 32006016, while the sum is 63.

The spelling of 71877963249 in words is "seventy-one billion, eight hundred seventy-seven million, nine hundred sixty-three thousand, two hundred forty-nine".