11543858252434 has 4 divisors (see below), whose sum is σ = 17315787378654. Its totient is φ = 5771929126216.

The previous prime is 11543858252431. The next prime is 11543858252461. The reversal of 11543858252434 is 43425285834511.

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

It can be written as a sum of positive squares in only one way, i.e., 11535172944409 + 8685308025 = 3396347^2 + 93195^2 .

It is not an unprimeable number, because it can be changed into a prime (11543858252431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2885964563107 + ... + 2885964563110.

Almost surely, 2^{11543858252434} is an apocalyptic number.

11543858252434 is a deficient number, since it is larger than the sum of its proper divisors (5771929126220).

11543858252434 is an equidigital number, since it uses as much as digits as its factorization.

11543858252434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5771929126219.

The product of its digits is 18432000, while the sum is 55.

The spelling of 11543858252434 in words is "eleven trillion, five hundred forty-three billion, eight hundred fifty-eight million, two hundred fifty-two thousand, four hundred thirty-four".