19247453841 has 32 divisors (see below), whose sum is σ = 32052814848. Its totient is φ = 9980850240.

The previous prime is 19247453821. The next prime is 19247453843. The reversal of 19247453841 is 14835474291.

It is not a de Polignac number, because 19247453841 - 2¹⁰ = 19247452817 is a prime.

It is a super-2 number, since 2×19247453841² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19247453843) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 56055 + ... + 204051.

It is an arithmetic number, because the mean of its divisors is an integer number (1001650464).

Almost surely, 2^19247453841 is an apocalyptic number.

19247453841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19247453841 is a deficient number, since it is larger than the sum of its proper divisors (12805361007).

19247453841 is a wasteful number, since it uses less digits than its factorization.

19247453841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148581.

The product of its digits is 967680, while the sum is 48.

The spelling of 19247453841 in words is "nineteen billion, two hundred forty-seven million, four hundred fifty-three thousand, eight hundred forty-one".