71782870292 has 12 divisors (see below), whose sum is σ = 143565740640. Its totient is φ = 30764087256.

The previous prime is 71782870279. The next prime is 71782870301. The reversal of 71782870292 is 29207828717.

71782870292 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281836942 + ... + 1281836997.

It is an arithmetic number, because the mean of its divisors is an integer number (11963811720).

Almost surely, 2^71782870292 is an apocalyptic number.

It is an amenable number.

71782870292 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71782870292 is a wasteful number, since it uses less digits than its factorization.

71782870292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563673950 (or 2563673948 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 53.

The spelling of 71782870292 in words is "seventy-one billion, seven hundred eighty-two million, eight hundred seventy thousand, two hundred ninety-two".