71443579454 has 16 divisors (see below), whose sum is σ = 116239144560. Its totient is φ = 32736735360.

The previous prime is 71443579373. The next prime is 71443579469. The reversal of 71443579454 is 45497534417.

It is a junction number, because it is equal to n+sod(n) for n = 71443579396 and 71443579405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9880667 + ... + 9887894.

It is an arithmetic number, because the mean of its divisors is an integer number (7264946535).

Almost surely, 2^71443579454 is an apocalyptic number.

71443579454 is a deficient number, since it is larger than the sum of its proper divisors (44795565106).

71443579454 is a wasteful number, since it uses less digits than its factorization.

71443579454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19768715.

The product of its digits is 8467200, while the sum is 53.

The spelling of 71443579454 in words is "seventy-one billion, four hundred forty-three million, five hundred seventy-nine thousand, four hundred fifty-four".