154464044435213 has 16 divisors (see below), whose sum is σ = 158765317225200. Its totient is φ = 150233174654976.

The previous prime is 154464044435209. The next prime is 154464044435219. The reversal of 154464044435213 is 312534440464451.

It can be written as a sum of positive squares in 8 ways, for example, as 390958821289 + 154073085613924 = 625267^2 + 12412618^2 .

It is a cyclic number.

It is not a de Polignac number, because 154464044435213 - 2² = 154464044435209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154464044435219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37413788 + ... + 41336661.

It is an arithmetic number, because the mean of its divisors is an integer number (9922832326575).

Almost surely, 2^{154464044435213} is an apocalyptic number.

It is an amenable number.

154464044435213 is a deficient number, since it is larger than the sum of its proper divisors (4301272789987).

154464044435213 is an equidigital number, since it uses as much as digits as its factorization.

154464044435213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78750896.

The product of its (nonzero) digits is 11059200, while the sum is 50.

Adding to 154464044435213 its reverse (312534440464451), we get a palindrome (466998484899664).

The spelling of 154464044435213 in words is "one hundred fifty-four trillion, four hundred sixty-four billion, forty-four million, four hundred thirty-five thousand, two hundred thirteen".