7940425453 has 2 divisors, whose sum is σ = 7940425454. Its totient is φ = 7940425452.

The previous prime is 7940425421. The next prime is 7940425459. The reversal of 7940425453 is 3545240497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7899298884 + 41126569 = 88878^2 + 6413^2 .

It is an emirp because it is prime and its reverse (3545240497) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7940425453 - 2⁵ = 7940425421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7940425459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3970212726 + 3970212727.

It is an arithmetic number, because the mean of its divisors is an integer number (3970212727).

Almost surely, 2^7940425453 is an apocalyptic number.

It is an amenable number.

7940425453 is a deficient number, since it is larger than the sum of its proper divisors (1).

7940425453 is an equidigital number, since it uses as much as digits as its factorization.

7940425453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 43.

The square root of 7940425453 is about 89109.0649316892. The cubic root of 7940425453 is about 1995.0230798225.

The spelling of 7940425453 in words is "seven billion, nine hundred forty million, four hundred twenty-five thousand, four hundred fifty-three".