247447383744742 has 8 divisors (see below), whose sum is σ = 371196132778656. Its totient is φ = 123715339485192.

The previous prime is 247447383744727. The next prime is 247447383744763.

247447383744742 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 2×247447383744742² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4176156558 + ... + 4176215809.

It is an arithmetic number, because the mean of its divisors is an integer number (46399516597332).

Almost surely, 2^{247447383744742} is an apocalyptic number.

247447383744742 is a deficient number, since it is larger than the sum of its proper divisors (123748749033914).

247447383744742 is a wasteful number, since it uses less digits than its factorization.

247447383744742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8352387182.

The product of its digits is 2832334848, while the sum is 70.

The spelling of 247447383744742 in words is "two hundred forty-seven trillion, four hundred forty-seven billion, three hundred eighty-three million, seven hundred forty-four thousand, seven hundred forty-two".