240773145453821 has 32 divisors (see below), whose sum is σ = 264677017651200. Its totient is φ = 218008421991360.

The previous prime is 240773145453773. The next prime is 240773145453847. The reversal of 240773145453821 is 128354541377042.

It is a cyclic number.

It is not a de Polignac number, because 240773145453821 - 2²² = 240773141259517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240773145450821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2852483600 + ... + 2852568006.

It is an arithmetic number, because the mean of its divisors is an integer number (8271156801600).

Almost surely, 2^{240773145453821} is an apocalyptic number.

It is an amenable number.

240773145453821 is a deficient number, since it is larger than the sum of its proper divisors (23903872197379).

240773145453821 is a wasteful number, since it uses less digits than its factorization.

240773145453821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89609.

The product of its (nonzero) digits is 22579200, while the sum is 56.

The spelling of 240773145453821 in words is "two hundred forty trillion, seven hundred seventy-three billion, one hundred forty-five million, four hundred fifty-three thousand, eight hundred twenty-one".