247494252945 has 8 divisors (see below), whose sum is σ = 395990804736. Its totient is φ = 131996934896.

The previous prime is 247494252883. The next prime is 247494252959. The reversal of 247494252945 is 549252494742.

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

It is a cyclic number.

It is not a de Polignac number, because 247494252945 - 2⁸ = 247494252689 is a prime.

It is a super-2 number, since 2×247494252945² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8249808417 + ... + 8249808446.

It is an arithmetic number, because the mean of its divisors is an integer number (49498850592).

Almost surely, 2^247494252945 is an apocalyptic number.

It is an amenable number.

247494252945 is a deficient number, since it is larger than the sum of its proper divisors (148496551791).

247494252945 is a wasteful number, since it uses less digits than its factorization.

247494252945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16499616871.

The product of its digits is 29030400, while the sum is 57.

The spelling of 247494252945 in words is "two hundred forty-seven billion, four hundred ninety-four million, two hundred fifty-two thousand, nine hundred forty-five".