240076981891 has 8 divisors (see below), whose sum is σ = 241374893760. Its totient is φ = 238782420648.

The previous prime is 240076981861. The next prime is 240076981909. The reversal of 240076981891 is 198189670042.

It is a happy number.

240076981891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 240076981891 - 2⁷ = 240076981763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240076981801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693901 + ... + 980638.

It is an arithmetic number, because the mean of its divisors is an integer number (30171861720).

Almost surely, 2^240076981891 is an apocalyptic number.

240076981891 is a deficient number, since it is larger than the sum of its proper divisors (1297911869).

240076981891 is a wasteful number, since it uses less digits than its factorization.

240076981891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675313.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 240076981891 in words is "two hundred forty billion, seventy-six million, nine hundred eighty-one thousand, eight hundred ninety-one".