2031705293642 has 4 divisors (see below), whose sum is σ = 3047557940466. Its totient is φ = 1015852646820.

The previous prime is 2031705293617. The next prime is 2031705293701. The reversal of 2031705293642 is 2463925071302.

It is a Cunningham number, because it is equal to 1425379²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2031705293641 + 1 = 1425379^2 + 1^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2031705293593 and 2031705293602.

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 as a sum of consecutive naturals, namely, 507926323409 + ... + 507926323412.

Almost surely, 2^{2031705293642} is an apocalyptic number.

2031705293642 is a deficient number, since it is larger than the sum of its proper divisors (1015852646824).

2031705293642 is a wasteful number, since it uses less digits than its factorization.

2031705293642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015852646823.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 2031705293642 in words is "two trillion, thirty-one billion, seven hundred five million, two hundred ninety-three thousand, six hundred forty-two".