242766402136143 has 32 divisors (see below), whose sum is σ = 355542362572800. Its totient is φ = 146658364291296.

The previous prime is 242766402136121. The next prime is 242766402136177. The reversal of 242766402136143 is 341631204667242.

It is not a de Polignac number, because 242766402136143 - 2⁶ = 242766402136079 is a prime.

It is a super-2 number, since 2×242766402136143² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242766402136243) 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, 142243428 + ... + 143940006.

It is an arithmetic number, because the mean of its divisors is an integer number (11110698830400).

Almost surely, 2^{242766402136143} is an apocalyptic number.

242766402136143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

242766402136143 is a deficient number, since it is larger than the sum of its proper divisors (112775960436657).

242766402136143 is a wasteful number, since it uses less digits than its factorization.

242766402136143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805771.

The product of its (nonzero) digits is 6967296, while the sum is 51.

The spelling of 242766402136143 in words is "two hundred forty-two trillion, seven hundred sixty-six billion, four hundred two million, one hundred thirty-six thousand, one hundred forty-three".