2001873392658 has 12 divisors (see below), whose sum is σ = 4337392350798. Its totient is φ = 667291130880.

The previous prime is 2001873392627. The next prime is 2001873392683. The reversal of 2001873392658 is 8562933781002.

2001873392658 is a `hidden beast` number, since 20 + 0 + 187 + 3 + 392 + 6 + 58 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1510546695849 + 491326696809 = 1229043^2 + 700947^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 55607594223 + ... + 55607594258.

Almost surely, 2^{2001873392658} is an apocalyptic number.

2001873392658 is an abundant number, since it is smaller than the sum of its proper divisors (2335518958140).

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

2001873392658 is a wasteful number, since it uses less digits than its factorization.

2001873392658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111215188489 (or 111215188486 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 2001873392658 in words is "two trillion, one billion, eight hundred seventy-three million, three hundred ninety-two thousand, six hundred fifty-eight".