2031640455 has 32 divisors (see below), whose sum is σ = 3684925440. Its totient is φ = 947548800.

The previous prime is 2031640411. The next prime is 2031640477. The reversal of 2031640455 is 5540461302.

It is not a de Polignac number, because 2031640455 - 2¹² = 2031636359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270471 + ... + 277880.

It is an arithmetic number, because the mean of its divisors is an integer number (115153920).

Almost surely, 2^2031640455 is an apocalyptic number.

2031640455 is a deficient number, since it is larger than the sum of its proper divisors (1653284985).

2031640455 is a wasteful number, since it uses less digits than its factorization.

2031640455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548391.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2031640455 is about 45073.7224444576. The cubic root of 2031640455 is about 1266.5303968901.

The spelling of 2031640455 in words is "two billion, thirty-one million, six hundred forty thousand, four hundred fifty-five".