19293551048 has 12 divisors (see below), whose sum is σ = 36176144865. Its totient is φ = 9646579088.

The previous prime is 19293551041. The next prime is 19293551087. The reversal of 19293551048 is 84015539291.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 16631197444 + 2662353604 = 128962^2 + 51598^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=98218.

It is a super-2 number, since 2×19293551048² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19293550993 and 19293551011.

It is not an unprimeable number, because it can be changed into a prime (19293551041) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 368318 + ... + 417426.

Almost surely, 2^19293551048 is an apocalyptic number.

It is an amenable number.

19293551048 is a deficient number, since it is larger than the sum of its proper divisors (16882593817).

19293551048 is an frugal number, since it uses more digits than its factorization.

19293551048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98224 (or 49111 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 19293551048 in words is "nineteen billion, two hundred ninety-three million, five hundred fifty-one thousand, forty-eight".