19635981034 has 16 divisors (see below), whose sum is σ = 31090564800. Its totient is φ = 9275338944.

The previous prime is 19635981031. The next prime is 19635981137. The reversal of 19635981034 is 43018953691.

It is not an unprimeable number, because it can be changed into a prime (19635981031) 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, 706047 + ... + 733330.

It is an arithmetic number, because the mean of its divisors is an integer number (1943160300).

Almost surely, 2^19635981034 is an apocalyptic number.

19635981034 is a deficient number, since it is larger than the sum of its proper divisors (11454583766).

19635981034 is a wasteful number, since it uses less digits than its factorization.

19635981034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439757.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 19635981034 in words is "nineteen billion, six hundred thirty-five million, nine hundred eighty-one thousand, thirty-four".