247262940623 has 4 divisors (see below), whose sum is σ = 253945722840. Its totient is φ = 240580158408.

The previous prime is 247262940593. The next prime is 247262940629. The reversal of 247262940623 is 326049262742.

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

It is a cyclic number.

It is not a de Polignac number, because 247262940623 - 2²⁰ = 247261892047 is a prime.

It is a super-2 number, since 2×247262940623² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247262940629) 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, 3341391053 + ... + 3341391126.

It is an arithmetic number, because the mean of its divisors is an integer number (63486430710).

Almost surely, 2^247262940623 is an apocalyptic number.

247262940623 is a deficient number, since it is larger than the sum of its proper divisors (6682782217).

247262940623 is an equidigital number, since it uses as much as digits as its factorization.

247262940623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6682782216.

The product of its (nonzero) digits is 1741824, while the sum is 47.

The spelling of 247262940623 in words is "two hundred forty-seven billion, two hundred sixty-two million, nine hundred forty thousand, six hundred twenty-three".