247995599742 has 48 divisors (see below), whose sum is σ = 589208665968. Its totient is φ = 74760791040.

The previous prime is 247995599647. The next prime is 247995599759.

247995599742 is a `hidden beast` number, since 24 + 7 + 9 + 9 + 5 + 599 + 7 + 4 + 2 = 666.

247995599742 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3206613 + ... + 3283040.

It is an arithmetic number, because the mean of its divisors is an integer number (12275180541).

Almost surely, 2^247995599742 is an apocalyptic number.

247995599742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

247995599742 is an abundant number, since it is smaller than the sum of its proper divisors (341213066226).

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

247995599742 is a wasteful number, since it uses less digits than its factorization.

247995599742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6489865 (or 6489862 counting only the distinct ones).

The product of its digits is 514382400, while the sum is 72.

The spelling of 247995599742 in words is "two hundred forty-seven billion, nine hundred ninety-five million, five hundred ninety-nine thousand, seven hundred forty-two".