71004802978 has 16 divisors (see below), whose sum is σ = 110286826560. Its totient is φ = 34244904400.

The previous prime is 71004802969. The next prime is 71004803011. The reversal of 71004802978 is 87920840017.

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, 533908 + ... + 653503.

It is an arithmetic number, because the mean of its divisors is an integer number (6892926660).

Almost surely, 2^71004802978 is an apocalyptic number.

71004802978 is a deficient number, since it is larger than the sum of its proper divisors (39282023582).

71004802978 is a wasteful number, since it uses less digits than its factorization.

71004802978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188473.

The product of its (nonzero) digits is 225792, while the sum is 46.

The spelling of 71004802978 in words is "seventy-one billion, four million, eight hundred two thousand, nine hundred seventy-eight".