71829690394 has 32 divisors (see below), whose sum is σ = 134808976512. Its totient is φ = 27885984000.

The previous prime is 71829690343. The next prime is 71829690407. The reversal of 71829690394 is 49309692817.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786667 + ... + 873214.

It is an arithmetic number, because the mean of its divisors is an integer number (4212780516).

Almost surely, 2^71829690394 is an apocalyptic number.

71829690394 is a deficient number, since it is larger than the sum of its proper divisors (62979286118).

71829690394 is a wasteful number, since it uses less digits than its factorization.

71829690394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660182.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 71829690394 in words is "seventy-one billion, eight hundred twenty-nine million, six hundred ninety thousand, three hundred ninety-four".