247463523880 has 32 divisors (see below), whose sum is σ = 565920687240. Its totient is φ = 97362696960.

The previous prime is 247463523871. The next prime is 247463523899. The reversal of 247463523880 is 88325364742.

It can be written as a sum of positive squares in 4 ways, for example, as 65580039396 + 181883484484 = 256086^2 + 426478^2 .

It is a super-2 number, since 2×247463523880² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

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, 50707299 + ... + 50712178.

Almost surely, 2^247463523880 is an apocalyptic number.

247463523880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247463523880 is an abundant number, since it is smaller than the sum of its proper divisors (318457163360).

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

247463523880 is a wasteful number, since it uses less digits than its factorization.

247463523880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101419549 (or 101419545 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 52.

The spelling of 247463523880 in words is "two hundred forty-seven billion, four hundred sixty-three million, five hundred twenty-three thousand, eight hundred eighty".