19707427026 has 48 divisors (see below), whose sum is σ = 49837641984. Its totient is φ = 5510889792.

The previous prime is 19707427001. The next prime is 19707427037. The reversal of 19707427026 is 62072470791.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1657995 + ... + 1669838.

It is an arithmetic number, because the mean of its divisors is an integer number (1038284208).

Almost surely, 2^19707427026 is an apocalyptic number.

19707427026 is an abundant number, since it is smaller than the sum of its proper divisors (30130214958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19707427026 is a wasteful number, since it uses less digits than its factorization.

19707427026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327895 (or 3327892 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The spelling of 19707427026 in words is "nineteen billion, seven hundred seven million, four hundred twenty-seven thousand, twenty-six".