19048931439 has 8 divisors (see below), whose sum is σ = 25756301952. Its totient is φ = 12520424280.

The previous prime is 19048931437. The next prime is 19048931449. The reversal of 19048931439 is 93413984091.

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

It is not a de Polignac number, because 19048931439 - 2¹ = 19048931437 is a prime.

It is a super-2 number, since 2×19048931439² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19048931391 and 19048931400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19048931431) 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, 44715589 + ... + 44716014.

It is an arithmetic number, because the mean of its divisors is an integer number (3219537744).

Almost surely, 2^19048931439 is an apocalyptic number.

19048931439 is a deficient number, since it is larger than the sum of its proper divisors (6707370513).

19048931439 is an equidigital number, since it uses as much as digits as its factorization.

19048931439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89431677.

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 19048931439 in words is "nineteen billion, forty-eight million, nine hundred thirty-one thousand, four hundred thirty-nine".