240847778815 has 16 divisors (see below), whose sum is σ = 347690027520. Its totient is φ = 156460511520.

The previous prime is 240847778807. The next prime is 240847778833. The reversal of 240847778815 is 518877748042.

It is not a de Polignac number, because 240847778815 - 2³ = 240847778807 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 181087891 + ... + 181089220.

It is an arithmetic number, because the mean of its divisors is an integer number (21730626720).

Almost surely, 2^240847778815 is an apocalyptic number.

240847778815 is a deficient number, since it is larger than the sum of its proper divisors (106842248705).

240847778815 is a wasteful number, since it uses less digits than its factorization.

240847778815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362177142.

The product of its (nonzero) digits is 28098560, while the sum is 61.

The spelling of 240847778815 in words is "two hundred forty billion, eight hundred forty-seven million, seven hundred seventy-eight thousand, eight hundred fifteen".