15420491453 has 2 divisors, whose sum is σ = 15420491454. Its totient is φ = 15420491452.

The previous prime is 15420491389. The next prime is 15420491507. The reversal of 15420491453 is 35419402451.

15420491453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14155764484 + 1264726969 = 118978^2 + 35563^2 .

It is a cyclic number.

It is not a de Polignac number, because 15420491453 - 2⁶ = 15420491389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15420491153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7710245726 + 7710245727.

It is an arithmetic number, because the mean of its divisors is an integer number (7710245727).

Almost surely, 2^15420491453 is an apocalyptic number.

It is an amenable number.

15420491453 is a deficient number, since it is larger than the sum of its proper divisors (1).

15420491453 is an equidigital number, since it uses as much as digits as its factorization.

15420491453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 15420491453 in words is "fifteen billion, four hundred twenty million, four hundred ninety-one thousand, four hundred fifty-three".