71526775340 has 24 divisors (see below), whose sum is σ = 153699398160. Its totient is φ = 27945344448.

The previous prime is 71526775339. The next prime is 71526775381. The reversal of 71526775340 is 4357762517.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 41584475 + ... + 41586194.

It is an arithmetic number, because the mean of its divisors is an integer number (6404141590).

Almost surely, 2^71526775340 is an apocalyptic number.

It is an amenable number.

71526775340 is an abundant number, since it is smaller than the sum of its proper divisors (82172622820).

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

71526775340 is a wasteful number, since it uses less digits than its factorization.

71526775340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83170721 (or 83170719 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 47.

The spelling of 71526775340 in words is "seventy-one billion, five hundred twenty-six million, seven hundred seventy-five thousand, three hundred forty".