19500000026 has 32 divisors (see below), whose sum is σ = 32786328960. Its totient is φ = 8636289984.

The previous prime is 19499999963. The next prime is 19500000043. The reversal of 19500000026 is 62000000591.

It is a junction number, because it is equal to n+sod(n) for n = 19499999947 and 19500000010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43571 + ... + 202233.

It is an arithmetic number, because the mean of its divisors is an integer number (1024572780).

Almost surely, 2^19500000026 is an apocalyptic number.

19500000026 is a deficient number, since it is larger than the sum of its proper divisors (13286328934).

19500000026 is a wasteful number, since it uses less digits than its factorization.

19500000026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158870.

The product of its (nonzero) digits is 540, while the sum is 23.

The spelling of 19500000026 in words is "nineteen billion, five hundred million, twenty-six", and thus it is an aban number.