15418441453 has 2 divisors, whose sum is σ = 15418441454. Its totient is φ = 15418441452.

The previous prime is 15418441433. The next prime is 15418441457. The reversal of 15418441453 is 35414481451.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12822844644 + 2595596809 = 113238^2 + 50947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15418441453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15418441457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7709220726 + 7709220727.

It is an arithmetic number, because the mean of its divisors is an integer number (7709220727).

Almost surely, 2^15418441453 is an apocalyptic number.

It is an amenable number.

15418441453 is a deficient number, since it is larger than the sum of its proper divisors (1).

15418441453 is an equidigital number, since it uses as much as digits as its factorization.

15418441453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153600, while the sum is 40.

The spelling of 15418441453 in words is "fifteen billion, four hundred eighteen million, four hundred forty-one thousand, four hundred fifty-three".