15454046421043 has 4 divisors (see below), whose sum is σ = 16363107975240. Its totient is φ = 14544984866848.

The previous prime is 15454046421013. The next prime is 15454046421059. The reversal of 15454046421043 is 34012464045451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15454046421043 - 2⁹ = 15454046420531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15454046421013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454530777073 + ... + 454530777106.

It is an arithmetic number, because the mean of its divisors is an integer number (4090776993810).

Almost surely, 2^{15454046421043} is an apocalyptic number.

15454046421043 is a deficient number, since it is larger than the sum of its proper divisors (909061554197).

15454046421043 is an equidigital number, since it uses as much as digits as its factorization.

15454046421043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909061554196.

The product of its (nonzero) digits is 921600, while the sum is 43.

The spelling of 15454046421043 in words is "fifteen trillion, four hundred fifty-four billion, forty-six million, four hundred twenty-one thousand, forty-three".