40612922621 has 2 divisors, whose sum is σ = 40612922622. Its totient is φ = 40612922620.

The previous prime is 40612922611. The next prime is 40612922629. The reversal of 40612922621 is 12622921604.

40612922621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25853102521 + 14759820100 = 160789^2 + 121490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40612922621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40612922629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20306461310 + 20306461311.

It is an arithmetic number, because the mean of its divisors is an integer number (20306461311).

Almost surely, 2^40612922621 is an apocalyptic number.

It is an amenable number.

40612922621 is a deficient number, since it is larger than the sum of its proper divisors (1).

40612922621 is an equidigital number, since it uses as much as digits as its factorization.

40612922621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 40612922621 in words is "forty billion, six hundred twelve million, nine hundred twenty-two thousand, six hundred twenty-one".