71985957119 has 8 divisors (see below), whose sum is σ = 74311342080. Its totient is φ = 69660775800.

The previous prime is 71985957101. The next prime is 71985957137. The reversal of 71985957119 is 91175958917.

It is an interprime number because it is at equal distance from previous prime (71985957101) and next prime (71985957137).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71985957119 - 2⁸ = 71985956863 is a prime.

It is a super-2 number, since 2×71985957119² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71985957019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036454 + ... + 1103724.

It is an arithmetic number, because the mean of its divisors is an integer number (9288917760).

Almost surely, 2^71985957119 is an apocalyptic number.

71985957119 is a deficient number, since it is larger than the sum of its proper divisors (2325384961).

71985957119 is a wasteful number, since it uses less digits than its factorization.

71985957119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101821.

The product of its digits is 7144200, while the sum is 62.

The spelling of 71985957119 in words is "seventy-one billion, nine hundred eighty-five million, nine hundred fifty-seven thousand, one hundred nineteen".