71128628015534 has 16 divisors (see below), whose sum is σ = 107716771617840. Its totient is φ = 35223310175040.

The previous prime is 71128628015429. The next prime is 71128628015569. The reversal of 71128628015534 is 43551082682117.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67651772 + ... + 68695119.

It is an arithmetic number, because the mean of its divisors is an integer number (6732298226115).

Almost surely, 2^{71128628015534} is an apocalyptic number.

71128628015534 is a deficient number, since it is larger than the sum of its proper divisors (36588143602306).

71128628015534 is a wasteful number, since it uses less digits than its factorization.

71128628015534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136349395.

The product of its (nonzero) digits is 3225600, while the sum is 53.

The spelling of 71128628015534 in words is "seventy-one trillion, one hundred twenty-eight billion, six hundred twenty-eight million, fifteen thousand, five hundred thirty-four".