80781447411 has 24 divisors (see below), whose sum is σ = 134673842784. Its totient is φ = 45703785600.

The previous prime is 80781447407. The next prime is 80781447427. The reversal of 80781447411 is 11474418708.

It is not a de Polignac number, because 80781447411 - 2² = 80781447407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80781447401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6341386 + ... + 6354111.

It is an arithmetic number, because the mean of its divisors is an integer number (5611410116).

Almost surely, 2^80781447411 is an apocalyptic number.

80781447411 is a deficient number, since it is larger than the sum of its proper divisors (53892395373).

80781447411 is a wasteful number, since it uses less digits than its factorization.

80781447411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12695611 (or 12695608 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 45.

The spelling of 80781447411 in words is "eighty billion, seven hundred eighty-one million, four hundred forty-seven thousand, four hundred eleven".