242476621477 has 4 divisors (see below), whose sum is σ = 242880077356. Its totient is φ = 242073165600.

The previous prime is 242476621451. The next prime is 242476621489. The reversal of 242476621477 is 774126674242.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 185015257956 + 57461363521 = 430134^2 + 239711^2 .

It is a cyclic number.

It is not a de Polignac number, because 242476621477 - 2¹⁵ = 242476588709 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 (242476625477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201727038 + ... + 201728239.

It is an arithmetic number, because the mean of its divisors is an integer number (60720019339).

Almost surely, 2^242476621477 is an apocalyptic number.

It is an amenable number.

242476621477 is a deficient number, since it is larger than the sum of its proper divisors (403455879).

242476621477 is an equidigital number, since it uses as much as digits as its factorization.

242476621477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403455878.

The product of its digits is 6322176, while the sum is 52.

The spelling of 242476621477 in words is "two hundred forty-two billion, four hundred seventy-six million, six hundred twenty-one thousand, four hundred seventy-seven".