71429522557 has 16 divisors (see below), whose sum is σ = 79975171584. Its totient is φ = 63472320000.

The previous prime is 71429522551. The next prime is 71429522579. The reversal of 71429522557 is 75522592417.

It is a cyclic number.

It is not a de Polignac number, because 71429522557 - 2¹⁹ = 71428998269 is a prime.

It is a super-3 number, since 3×71429522557³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71429522557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71429522551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1631319 + ... + 1674532.

It is an arithmetic number, because the mean of its divisors is an integer number (4998448224).

Almost surely, 2^71429522557 is an apocalyptic number.

It is an amenable number.

71429522557 is a deficient number, since it is larger than the sum of its proper divisors (8545649027).

71429522557 is a wasteful number, since it uses less digits than its factorization.

71429522557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305940.

The product of its digits is 1764000, while the sum is 49.

The spelling of 71429522557 in words is "seventy-one billion, four hundred twenty-nine million, five hundred twenty-two thousand, five hundred fifty-seven".