1896742423457 has 24 divisors (see below), whose sum is σ = 2288118701376. Its totient is φ = 1539997419744.

The previous prime is 1896742423439. The next prime is 1896742423469. The reversal of 1896742423457 is 7543242476981.

It is not a de Polignac number, because 1896742423457 - 2¹⁰ = 1896742422433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1896742423457.

It is not an unprimeable number, because it can be changed into a prime (1896742423487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19553558 + ... + 19650320.

It is an arithmetic number, because the mean of its divisors is an integer number (95338279224).

Almost surely, 2^{1896742423457} is an apocalyptic number.

It is an amenable number.

1896742423457 is a deficient number, since it is larger than the sum of its proper divisors (391376277919).

1896742423457 is an equidigital number, since it uses as much as digits as its factorization.

1896742423457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104565 (or 104546 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 62.

The spelling of 1896742423457 in words is "one trillion, eight hundred ninety-six billion, seven hundred forty-two million, four hundred twenty-three thousand, four hundred fifty-seven".