71220026542329 has 32 divisors (see below), whose sum is σ = 120589273671680. Its totient is φ = 40695436184400.

The previous prime is 71220026542319. The next prime is 71220026542337. The reversal of 71220026542329 is 92324562002217.

71220026542329 is a `hidden beast` number, since 7 + 1 + 2 + 20 + 0 + 265 + 42 + 329 = 666.

It is not a de Polignac number, because 71220026542329 - 2¹⁵ = 71220026509561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71220026542319) 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, 3485827 + ... + 12433464.

It is an arithmetic number, because the mean of its divisors is an integer number (3768414802240).

Almost surely, 2^{71220026542329} is an apocalyptic number.

It is an amenable number.

71220026542329 is a deficient number, since it is larger than the sum of its proper divisors (49369247129351).

71220026542329 is a wasteful number, since it uses less digits than its factorization.

71220026542329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15942978 (or 15942972 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 71220026542329 in words is "seventy-one trillion, two hundred twenty billion, twenty-six million, five hundred forty-two thousand, three hundred twenty-nine".