40481919328 has 12 divisors (see below), whose sum is σ = 79698778740. Its totient is φ = 20240959648.

The previous prime is 40481919311. The next prime is 40481919343. The reversal of 40481919328 is 82391918404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632529958 + ... + 632530021.

It is an arithmetic number, because the mean of its divisors is an integer number (6641564895).

Almost surely, 2^40481919328 is an apocalyptic number.

It is an amenable number.

40481919328 is a deficient number, since it is larger than the sum of its proper divisors (39216859412).

40481919328 is a wasteful number, since it uses less digits than its factorization.

40481919328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265059989 (or 1265059981 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 40481919328 in words is "forty billion, four hundred eighty-one million, nine hundred nineteen thousand, three hundred twenty-eight".