71354808438 has 32 divisors (see below), whose sum is σ = 145089047040. Its totient is φ = 23388579360.

The previous prime is 71354808431. The next prime is 71354808439. The reversal of 71354808438 is 83480845317.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71354808431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1409481 + ... + 1459227.

It is an arithmetic number, because the mean of its divisors is an integer number (4534032720).

Almost surely, 2^71354808438 is an apocalyptic number.

71354808438 is an abundant number, since it is smaller than the sum of its proper divisors (73734238602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71354808438 is a wasteful number, since it uses less digits than its factorization.

71354808438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53732.

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 71354808438 in words is "seventy-one billion, three hundred fifty-four million, eight hundred eight thousand, four hundred thirty-eight".