20754486672 has 60 divisors (see below), whose sum is σ = 54955567440. Its totient is φ = 6749400320.

The previous prime is 20754486661. The next prime is 20754486677. The reversal of 20754486672 is 27668445702.

It is not an unprimeable number, because it can be changed into a prime (20754486677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47922 + ... + 209297.

It is an arithmetic number, because the mean of its divisors is an integer number (915926124).

Almost surely, 2^20754486672 is an apocalyptic number.

It is an amenable number.

20754486672 is an abundant number, since it is smaller than the sum of its proper divisors (34201080768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20754486672 is a wasteful number, since it uses less digits than its factorization.

20754486672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257312 (or 257265 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 51.

The spelling of 20754486672 in words is "twenty billion, seven hundred fifty-four million, four hundred eighty-six thousand, six hundred seventy-two".