154448531091419 has 2 divisors, whose sum is σ = 154448531091420. Its totient is φ = 154448531091418.

The previous prime is 154448531091409. The next prime is 154448531091457. The reversal of 154448531091419 is 914190135844451.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154448531091419 is a prime.

It is a super-2 number, since 2×154448531091419² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154448531091409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77224265545709 + 77224265545710.

It is an arithmetic number, because the mean of its divisors is an integer number (77224265545710).

Almost surely, 2^{154448531091419} is an apocalyptic number.

154448531091419 is a deficient number, since it is larger than the sum of its proper divisors (1).

154448531091419 is an equidigital number, since it uses as much as digits as its factorization.

154448531091419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12441600, while the sum is 59.

The spelling of 154448531091419 in words is "one hundred fifty-four trillion, four hundred forty-eight billion, five hundred thirty-one million, ninety-one thousand, four hundred nineteen".