20744921462 has 16 divisors (see below), whose sum is σ = 32156313552. Its totient is φ = 10030927200.

The previous prime is 20744921459. The next prime is 20744921467. The reversal of 20744921462 is 26412944702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20744921467) 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, 1185473 + ... + 1202844.

It is an arithmetic number, because the mean of its divisors is an integer number (2009769597).

Almost surely, 2^20744921462 is an apocalyptic number.

20744921462 is a deficient number, since it is larger than the sum of its proper divisors (11411392090).

20744921462 is a wasteful number, since it uses less digits than its factorization.

20744921462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388463.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 20744921462 in words is "twenty billion, seven hundred forty-four million, nine hundred twenty-one thousand, four hundred sixty-two".