71428746578 has 24 divisors (see below), whose sum is σ = 124652042352. Its totient is φ = 30608348904.

The previous prime is 71428746577. The next prime is 71428746601. The reversal of 71428746578 is 87564782417.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (71428746577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 786725 + ... + 872807.

It is an arithmetic number, because the mean of its divisors is an integer number (5193835098).

Almost surely, 2^71428746578 is an apocalyptic number.

71428746578 is a deficient number, since it is larger than the sum of its proper divisors (53223295774).

71428746578 is a wasteful number, since it uses less digits than its factorization.

71428746578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94566 (or 94559 counting only the distinct ones).

The product of its digits is 21073920, while the sum is 59.

The spelling of 71428746578 in words is "seventy-one billion, four hundred twenty-eight million, seven hundred forty-six thousand, five hundred seventy-eight".