71139094554029 has 16 divisors (see below), whose sum is σ = 73845106196400. Its totient is φ = 68449956804096.

The previous prime is 71139094554023. The next prime is 71139094554097. The reversal of 71139094554029 is 92045549093117.

It can be written as a sum of positive squares in 8 ways, for example, as 8160220692100 + 62978873861929 = 2856610^2 + 7935923^2 .

It is a cyclic number.

It is not a de Polignac number, because 71139094554029 - 2⁸ = 71139094553773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71139094554023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501498497 + ... + 501640329.

It is an arithmetic number, because the mean of its divisors is an integer number (4615319137275).

Almost surely, 2^{71139094554029} is an apocalyptic number.

It is an amenable number.

71139094554029 is a deficient number, since it is larger than the sum of its proper divisors (2706011642371).

71139094554029 is a wasteful number, since it uses less digits than its factorization.

71139094554029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201184.

The product of its (nonzero) digits is 12247200, while the sum is 59.

The spelling of 71139094554029 in words is "seventy-one trillion, one hundred thirty-nine billion, ninety-four million, five hundred fifty-four thousand, twenty-nine".