71513151005 has 64 divisors (see below), whose sum is σ = 94520701440. Its totient is φ = 51776879616.

The previous prime is 71513150977. The next prime is 71513151013. The reversal of 71513151005 is 50015131517.

It is a cyclic number.

It is not a de Polignac number, because 71513151005 - 2¹² = 71513146909 is a prime.

It is a super-2 number, since 2×71513151005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49216859 + ... + 49218311.

It is an arithmetic number, because the mean of its divisors is an integer number (1476885960).

Almost surely, 2^71513151005 is an apocalyptic number.

It is an amenable number.

71513151005 is a deficient number, since it is larger than the sum of its proper divisors (23007550435).

71513151005 is a wasteful number, since it uses less digits than its factorization.

71513151005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830.

The product of its (nonzero) digits is 2625, while the sum is 29.

The spelling of 71513151005 in words is "seventy-one billion, five hundred thirteen million, one hundred fifty-one thousand, five".