71541504404 has 12 divisors (see below), whose sum is σ = 125995070964. Its totient is φ = 35542912704.

The previous prime is 71541504371. The next prime is 71541504523. The reversal of 71541504404 is 40440514517.

It can be written as a sum of positive squares in 2 ways, for example, as 7132140304 + 64409364100 = 84452^2 + 253790^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56959169 + ... + 56960424.

It is an arithmetic number, because the mean of its divisors is an integer number (10499589247).

Almost surely, 2^71541504404 is an apocalyptic number.

It is an amenable number.

71541504404 is a deficient number, since it is larger than the sum of its proper divisors (54453566560).

71541504404 is a wasteful number, since it uses less digits than its factorization.

71541504404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113919754 (or 113919752 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The spelling of 71541504404 in words is "seventy-one billion, five hundred forty-one million, five hundred four thousand, four hundred four".