71729266099697 has 32 divisors (see below), whose sum is σ = 76406638936320. Its totient is φ = 67332432367872.

The previous prime is 71729266099669. The next prime is 71729266099747. The reversal of 71729266099697 is 79699066292717.

It is not a de Polignac number, because 71729266099697 - 2¹⁴ = 71729266083313 is a prime.

It is a super-2 number, since 2×71729266099697² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71729266099627) 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, 2994071843 + ... + 2994095799.

It is an arithmetic number, because the mean of its divisors is an integer number (2387707466760).

Almost surely, 2^{71729266099697} is an apocalyptic number.

It is an amenable number.

71729266099697 is a deficient number, since it is larger than the sum of its proper divisors (4677372836623).

71729266099697 is a wasteful number, since it uses less digits than its factorization.

71729266099697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27990 (or 27952 counting only the distinct ones).

The product of its (nonzero) digits is 1944365472, while the sum is 80.

The spelling of 71729266099697 in words is "seventy-one trillion, seven hundred twenty-nine billion, two hundred sixty-six million, ninety-nine thousand, six hundred ninety-seven".