23445932028921 has 16 divisors (see below), whose sum is σ = 35008215808000. Its totient is φ = 15507545591664.

The previous prime is 23445932028919. The next prime is 23445932028943. The reversal of 23445932028921 is 12982023954432.

23445932028921 is a `hidden beast` number, since 2 + 3 + 4 + 4 + 593 + 2 + 0 + 28 + 9 + 21 = 666.

It is not a de Polignac number, because 23445932028921 - 2¹ = 23445932028919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23445932028991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3418767646 + ... + 3418774503.

It is an arithmetic number, because the mean of its divisors is an integer number (2188013488000).

Almost surely, 2^{23445932028921} is an apocalyptic number.

It is an amenable number.

23445932028921 is a deficient number, since it is larger than the sum of its proper divisors (11562283779079).

23445932028921 is a wasteful number, since it uses less digits than its factorization.

23445932028921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6837542285 (or 6837542279 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 23445932028921 in words is "twenty-three trillion, four hundred forty-five billion, nine hundred thirty-two million, twenty-eight thousand, nine hundred twenty-one".