40642560001 has 2 divisors, whose sum is σ = 40642560002. Its totient is φ = 40642560000.

The previous prime is 40642559989. The next prime is 40642560019. The reversal of 40642560001 is 10006524604.

It is a Cunningham number, because it is equal to 201600²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40642560000 + 1 = 201600^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 40642560001 - 2¹¹ = 40642557953 is a prime.

It is not a weakly prime, because it can be changed into another prime (40642560031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20321280000 + 20321280001.

It is an arithmetic number, because the mean of its divisors is an integer number (20321280001).

Almost surely, 2^40642560001 is an apocalyptic number.

It is an amenable number.

40642560001 is a deficient number, since it is larger than the sum of its proper divisors (1).

40642560001 is an equidigital number, since it uses as much as digits as its factorization.

40642560001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 40642560001 in words is "forty billion, six hundred forty-two million, five hundred sixty thousand, one".