43746445453 has 2 divisors, whose sum is σ = 43746445454. Its totient is φ = 43746445452.

The previous prime is 43746445433. The next prime is 43746445499. The reversal of 43746445453 is 35454464734.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43296454084 + 449991369 = 208078^2 + 21213^2 .

It is a cyclic number.

It is not a de Polignac number, because 43746445453 - 2¹³ = 43746437261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43746445397 and 43746445406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43746445403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21873222726 + 21873222727.

It is an arithmetic number, because the mean of its divisors is an integer number (21873222727).

Almost surely, 2^43746445453 is an apocalyptic number.

It is an amenable number.

43746445453 is a deficient number, since it is larger than the sum of its proper divisors (1).

43746445453 is an equidigital number, since it uses as much as digits as its factorization.

43746445453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9676800, while the sum is 49.

The spelling of 43746445453 in words is "forty-three billion, seven hundred forty-six million, four hundred forty-five thousand, four hundred fifty-three".