71898536290 has 32 divisors (see below), whose sum is σ = 147915465984. Its totient is φ = 24649275840.

The previous prime is 71898536287. The next prime is 71898536309. The reversal of 71898536290 is 9263589817.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1510332 + ... + 1557208.

It is an arithmetic number, because the mean of its divisors is an integer number (4622358312).

Almost surely, 2^71898536290 is an apocalyptic number.

71898536290 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71898536290 is an abundant number, since it is smaller than the sum of its proper divisors (76016929694).

71898536290 is a wasteful number, since it uses less digits than its factorization.

71898536290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68802.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 71898536290 in words is "seventy-one billion, eight hundred ninety-eight million, five hundred thirty-six thousand, two hundred ninety".