243515432451401 has 32 divisors (see below), whose sum is σ = 277425721882368. Its totient is φ = 211582742103040.

The previous prime is 243515432451371. The next prime is 243515432451413. The reversal of 243515432451401 is 104154234515342.

It is not a de Polignac number, because 243515432451401 - 2³⁴ = 243498252582217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243515432451451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1613753111 + ... + 1613904003.

It is an arithmetic number, because the mean of its divisors is an integer number (8669553808824).

Almost surely, 2^{243515432451401} is an apocalyptic number.

It is an amenable number.

243515432451401 is a deficient number, since it is larger than the sum of its proper divisors (33910289430967).

243515432451401 is a wasteful number, since it uses less digits than its factorization.

243515432451401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156001.

The product of its (nonzero) digits is 1152000, while the sum is 44.

Adding to 243515432451401 its reverse (104154234515342), we get a palindrome (347669666966743).

The spelling of 243515432451401 in words is "two hundred forty-three trillion, five hundred fifteen billion, four hundred thirty-two million, four hundred fifty-one thousand, four hundred one".