19047639999999 has 32 divisors (see below), whose sum is σ = 29459489086720. Its totient is φ = 10846448218368.

The previous prime is 19047639999979. The next prime is 19047640000009. The reversal of 19047639999999 is 99999993674091.

It is not a de Polignac number, because 19047639999999 - 2²⁰ = 19047638951423 is a prime.

It is a Duffinian number.

19047639999999 is a modest number, since divided by 9999999 gives 1904763 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19047639999979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298867174 + ... + 298930899.

It is an arithmetic number, because the mean of its divisors is an integer number (920609033960).

Almost surely, 2^{19047639999999} is an apocalyptic number.

19047639999999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

19047639999999 is a deficient number, since it is larger than the sum of its proper divisors (10411849086721).

19047639999999 is a wasteful number, since it uses less digits than its factorization.

19047639999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597798151.

The product of its (nonzero) digits is 21695547384, while the sum is 93.

The spelling of 19047639999999 in words is "nineteen trillion, forty-seven billion, six hundred thirty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".