154448531091455 has 32 divisors (see below), whose sum is σ = 195274043240640. Its totient is φ = 116947082327040.

The previous prime is 154448531091419. The next prime is 154448531091457. The reversal of 154448531091455 is 554190135844451.

It is not a de Polignac number, because 154448531091455 - 2⁶ = 154448531091391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154448531091394 and 154448531091403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154448531091457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 444701249 + ... + 445048421.

It is an arithmetic number, because the mean of its divisors is an integer number (6102313851270).

Almost surely, 2^{154448531091455} is an apocalyptic number.

154448531091455 is a deficient number, since it is larger than the sum of its proper divisors (40825512149185).

154448531091455 is a wasteful number, since it uses less digits than its factorization.

154448531091455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351531.

The product of its (nonzero) digits is 34560000, while the sum is 59.

The spelling of 154448531091455 in words is "one hundred fifty-four trillion, four hundred forty-eight billion, five hundred thirty-one million, ninety-one thousand, four hundred fifty-five".