240897885539 has 4 divisors (see below), whose sum is σ = 253576721640. Its totient is φ = 228219049440.

The previous prime is 240897885533. The next prime is 240897885541. The reversal of 240897885539 is 935588798042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240897885539 - 2²⁰ = 240896836963 is a prime.

It is a super-2 number, since 2×240897885539² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240897885533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6339418022 + ... + 6339418059.

It is an arithmetic number, because the mean of its divisors is an integer number (63394180410).

Almost surely, 2^240897885539 is an apocalyptic number.

240897885539 is a deficient number, since it is larger than the sum of its proper divisors (12678836101).

240897885539 is a wasteful number, since it uses less digits than its factorization.

240897885539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12678836100.

The product of its (nonzero) digits is 174182400, while the sum is 68.

The spelling of 240897885539 in words is "two hundred forty billion, eight hundred ninety-seven million, eight hundred eighty-five thousand, five hundred thirty-nine".