2031005505440 has 48 divisors (see below), whose sum is σ = 4805095637160. Its totient is φ = 811243238400.

The previous prime is 2031005505421. The next prime is 2031005505491. The reversal of 2031005505440 is 445055001302.

It can be written as a sum of positive squares in 4 ways, for example, as 1683900713104 + 347104792336 = 1297652^2 + 589156^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8941895 + ... + 9166214.

Almost surely, 2^{2031005505440} is an apocalyptic number.

2031005505440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031005505440 is an abundant number, since it is smaller than the sum of its proper divisors (2774090131720).

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

2031005505440 is a wasteful number, since it uses less digits than its factorization.

2031005505440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18108825 (or 18108817 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 2031005505440 in words is "two trillion, thirty-one billion, five million, five hundred five thousand, four hundred forty".