19048502362681 has 27 divisors (see below), whose sum is σ = 21636494608869. Its totient is φ = 16756903884600.

The previous prime is 19048502362607. The next prime is 19048502362741. The reversal of 19048502362681 is 18626320584091.

The square root of 19048502362681 is 4364459.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 19048502362681 - 2¹⁹ = 19048501838393 is a prime.

It is a super-2 number, since 2×19048502362681² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19048502392681) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1488274120 + ... + 1488286918.

Almost surely, 2^{19048502362681} is an apocalyptic number.

19048502362681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

19048502362681 is the 4364459-th square number.

19048502362681 is the 2182230-th centered octagonal number.

It is an amenable number.

19048502362681 is a deficient number, since it is larger than the sum of its proper divisors (2587992246188).

19048502362681 is an frugal number, since it uses more digits than its factorization.

19048502362681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25682 (or 12841 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 19048502362681 in words is "nineteen trillion, forty-eight billion, five hundred two million, three hundred sixty-two thousand, six hundred eighty-one".