247248640674 has 192 divisors, whose sum is σ = 651242592000. Its totient is φ = 70274542464.

The previous prime is 247248640663. The next prime is 247248640739. The reversal of 247248640674 is 476046842742.

247248640674 is a `hidden beast` number, since 2 + 472 + 48 + 64 + 0 + 6 + 74 = 666.

It is a super-2 number, since 2×247248640674² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 247248640674.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32835742 + ... + 32843270.

It is an arithmetic number, because the mean of its divisors is an integer number (3391888500).

Almost surely, 2^247248640674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247248640674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325621296000).

247248640674 is an abundant number, since it is smaller than the sum of its proper divisors (403993951326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247248640674 is an equidigital number, since it uses as much as digits as its factorization.

247248640674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7764 (or 7738 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 54.

The spelling of 247248640674 in words is "two hundred forty-seven billion, two hundred forty-eight million, six hundred forty thousand, six hundred seventy-four".