242777421156536 has 16 divisors (see below), whose sum is σ = 520237331049840. Its totient is φ = 104047466209920.

The previous prime is 242777421156499. The next prime is 242777421156539. The reversal of 242777421156536 is 635651124777242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242777421156539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2167655545985 + ... + 2167655546096.

It is an arithmetic number, because the mean of its divisors is an integer number (32514833190615).

Almost surely, 2^{242777421156536} is an apocalyptic number.

It is an amenable number.

242777421156536 is an abundant number, since it is smaller than the sum of its proper divisors (277459909893304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242777421156536 is a wasteful number, since it uses less digits than its factorization.

242777421156536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335311092094 (or 4335311092090 counting only the distinct ones).

The product of its digits is 118540800, while the sum is 62.

The spelling of 242777421156536 in words is "two hundred forty-two trillion, seven hundred seventy-seven billion, four hundred twenty-one million, one hundred fifty-six thousand, five hundred thirty-six".