20754483945 has 16 divisors (see below), whose sum is σ = 35761572672. Its totient is φ = 10217592000.

The previous prime is 20754483929. The next prime is 20754484013. The reversal of 20754483945 is 54938445702.

It is not a de Polignac number, because 20754483945 - 2⁴ = 20754483929 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53216431 + ... + 53216820.

It is an arithmetic number, because the mean of its divisors is an integer number (2235098292).

Almost surely, 2^20754483945 is an apocalyptic number.

It is an amenable number.

20754483945 is a deficient number, since it is larger than the sum of its proper divisors (15007088727).

20754483945 is a wasteful number, since it uses less digits than its factorization.

20754483945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106433272.

The product of its (nonzero) digits is 4838400, while the sum is 51.

The spelling of 20754483945 in words is "twenty billion, seven hundred fifty-four million, four hundred eighty-three thousand, nine hundred forty-five".