247442202244742 has 8 divisors (see below), whose sum is σ = 371182237431096. Its totient is φ = 123714789767712.

The previous prime is 247442202244619. The next prime is 247442202244759.

247442202244742 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×247442202244742² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3155628323 + ... + 3155706734.

It is an arithmetic number, because the mean of its divisors is an integer number (46397779678887).

Almost surely, 2^{247442202244742} is an apocalyptic number.

247442202244742 is a deficient number, since it is larger than the sum of its proper divisors (123740035186354).

247442202244742 is a wasteful number, since it uses less digits than its factorization.

247442202244742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311354662.

The product of its (nonzero) digits is 12845056, while the sum is 50.

It can be divided in two parts, 24744220 and 2244742, that added together give a palindrome (26988962).

The spelling of 247442202244742 in words is "two hundred forty-seven trillion, four hundred forty-two billion, two hundred two million, two hundred forty-four thousand, seven hundred forty-two".