8046972649 has 2 divisors, whose sum is σ = 8046972650. Its totient is φ = 8046972648.

The previous prime is 8046972643. The next prime is 8046972673. The reversal of 8046972649 is 9462796408.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5006553049 + 3040419600 = 70757^2 + 55140^2 .

It is a cyclic number.

It is not a de Polignac number, because 8046972649 - 2⁹ = 8046972137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8046972649.

It is not a weakly prime, because it can be changed into another prime (8046972643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4023486324 + 4023486325.

It is an arithmetic number, because the mean of its divisors is an integer number (4023486325).

Almost surely, 2^8046972649 is an apocalyptic number.

It is an amenable number.

8046972649 is a deficient number, since it is larger than the sum of its proper divisors (1).

8046972649 is an equidigital number, since it uses as much as digits as its factorization.

8046972649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The square root of 8046972649 is about 89704.9198706515. The cubic root of 8046972649 is about 2003.9067510956.

The spelling of 8046972649 in words is "eight billion, forty-six million, nine hundred seventy-two thousand, six hundred forty-nine".