4453651997 has 2 divisors, whose sum is σ = 4453651998. Its totient is φ = 4453651996.

The previous prime is 4453651973. The next prime is 4453652009. The reversal of 4453651997 is 7991563544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3184796356 + 1268855641 = 56434^2 + 35621^2 .

It is a cyclic number.

It is not a de Polignac number, because 4453651997 - 2¹⁶ = 4453586461 is a prime.

It is a super-2 number, since 2×4453651997² = 39670032220764176018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4453651967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2226825998 + 2226825999.

It is an arithmetic number, because the mean of its divisors is an integer number (2226825999).

Almost surely, 2^4453651997 is an apocalyptic number.

It is an amenable number.

4453651997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4453651997 is an equidigital number, since it uses as much as digits as its factorization.

4453651997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4082400, while the sum is 53.

The square root of 4453651997 is about 66735.6875816830. The cubic root of 4453651997 is about 1645.2759885911.

The spelling of 4453651997 in words is "four billion, four hundred fifty-three million, six hundred fifty-one thousand, nine hundred ninety-seven".