71349208290 has 32 divisors (see below), whose sum is σ = 190264556160. Its totient is φ = 19026455472.

The previous prime is 71349208279. The next prime is 71349208309. The reversal of 71349208290 is 9280294317.

71349208290 is a `hidden beast` number, since 71 + 3 + 492 + 0 + 8 + 2 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132127894 + ... + 132128433.

It is an arithmetic number, because the mean of its divisors is an integer number (5945767380).

Almost surely, 2^71349208290 is an apocalyptic number.

71349208290 is an abundant number, since it is smaller than the sum of its proper divisors (118915347870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71349208290 is a wasteful number, since it uses less digits than its factorization.

71349208290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264256343 (or 264256337 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 71349208290 in words is "seventy-one billion, three hundred forty-nine million, two hundred eight thousand, two hundred ninety".