71910013137 has 4 divisors (see below), whose sum is σ = 95880017520. Its totient is φ = 47940008756.

The previous prime is 71910013121. The next prime is 71910013139. The reversal of 71910013137 is 73131001917.

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 71910013137 - 2⁴ = 71910013121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71910013098 and 71910013107.

It is not an unprimeable number, because it can be changed into a prime (71910013139) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11985002187 + ... + 11985002192.

It is an arithmetic number, because the mean of its divisors is an integer number (23970004380).

Almost surely, 2^71910013137 is an apocalyptic number.

It is an amenable number.

71910013137 is a deficient number, since it is larger than the sum of its proper divisors (23970004383).

71910013137 is a wasteful number, since it uses less digits than its factorization.

71910013137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23970004382.

The product of its (nonzero) digits is 3969, while the sum is 33.

It can be divided in two parts, 719100 and 13137, that added together give a palindrome (732237).

The spelling of 71910013137 in words is "seventy-one billion, nine hundred ten million, thirteen thousand, one hundred thirty-seven".