7980547453 has 2 divisors, whose sum is σ = 7980547454. Its totient is φ = 7980547452.

The previous prime is 7980547441. The next prime is 7980547489. The reversal of 7980547453 is 3547450897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6367561209 + 1612986244 = 79797^2 + 40162^2 .

It is a cyclic number.

It is not a de Polignac number, because 7980547453 - 2⁹ = 7980546941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7980547453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7980547493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3990273726 + 3990273727.

It is an arithmetic number, because the mean of its divisors is an integer number (3990273727).

Almost surely, 2^7980547453 is an apocalyptic number.

It is an amenable number.

7980547453 is a deficient number, since it is larger than the sum of its proper divisors (1).

7980547453 is an equidigital number, since it uses as much as digits as its factorization.

7980547453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The square root of 7980547453 is about 89333.9098718958. The cubic root of 7980547453 is about 1998.3776387445.

The spelling of 7980547453 in words is "seven billion, nine hundred eighty million, five hundred forty-seven thousand, four hundred fifty-three".