8047780401 has 16 divisors (see below), whose sum is σ = 11174904000. Its totient is φ = 5145405888.

The previous prime is 8047780387. The next prime is 8047780421. The reversal of 8047780401 is 1040877408.

It is not a de Polignac number, because 8047780401 - 2¹¹ = 8047778353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8047780401.

It is not an unprimeable number, because it can be changed into a prime (8047780421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297451 + ... + 323376.

It is an arithmetic number, because the mean of its divisors is an integer number (698431500).

Almost surely, 2^8047780401 is an apocalyptic number.

It is an amenable number.

8047780401 is a deficient number, since it is larger than the sum of its proper divisors (3127123599).

8047780401 is a wasteful number, since it uses less digits than its factorization.

8047780401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621008.

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 8047780401 is about 89709.4220302416. The cubic root of 8047780401 is about 2003.9737993136.

The spelling of 8047780401 in words is "eight billion, forty-seven million, seven hundred eighty thousand, four hundred one".