71072545115 has 32 divisors (see below), whose sum is σ = 100220150016. Its totient is φ = 47702194560.

The previous prime is 71072545079. The next prime is 71072545123. The reversal of 71072545115 is 51154527017.

It is not a de Polignac number, because 71072545115 - 2¹⁰ = 71072544091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4272404 + ... + 4289006.

It is an arithmetic number, because the mean of its divisors is an integer number (3131879688).

Almost surely, 2^71072545115 is an apocalyptic number.

71072545115 is a deficient number, since it is larger than the sum of its proper divisors (29147604901).

71072545115 is a wasteful number, since it uses less digits than its factorization.

71072545115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22619.

The product of its (nonzero) digits is 49000, while the sum is 38.

The spelling of 71072545115 in words is "seventy-one billion, seventy-two million, five hundred forty-five thousand, one hundred fifteen".