71600942949 has 4 divisors (see below), whose sum is σ = 95467923936. Its totient is φ = 47733961964.

The previous prime is 71600942891. The next prime is 71600942969. The reversal of 71600942949 is 94924900617.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71600942949 - 2²⁵ = 71567388517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71600942969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11933490489 + ... + 11933490494.

It is an arithmetic number, because the mean of its divisors is an integer number (23866980984).

Almost surely, 2^71600942949 is an apocalyptic number.

It is an amenable number.

71600942949 is a deficient number, since it is larger than the sum of its proper divisors (23866980987).

71600942949 is a wasteful number, since it uses less digits than its factorization.

71600942949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23866980986.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 71600942949 in words is "seventy-one billion, six hundred million, nine hundred forty-two thousand, nine hundred forty-nine".