1898144273513 has 8 divisors (see below), whose sum is σ = 1944521673696. Its totient is φ = 1851770740000.

The previous prime is 1898144273503. The next prime is 1898144273521. The reversal of 1898144273513 is 3153724418981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1898144273513 - 2⁸ = 1898144273257 is a prime.

It is a super-2 number, since 2×1898144273513² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1898144273503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39770 + ... + 1948812.

It is an arithmetic number, because the mean of its divisors is an integer number (243065209212).

Almost surely, 2^{1898144273513} is an apocalyptic number.

It is an amenable number.

1898144273513 is a deficient number, since it is larger than the sum of its proper divisors (46377400183).

1898144273513 is a wasteful number, since it uses less digits than its factorization.

1898144273513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933335.

The product of its digits is 5806080, while the sum is 56.

The spelling of 1898144273513 in words is "one trillion, eight hundred ninety-eight billion, one hundred forty-four million, two hundred seventy-three thousand, five hundred thirteen".