19974916607 has 32 divisors (see below), whose sum is σ = 21238200000. Its totient is φ = 18764448768.

The previous prime is 19974916597. The next prime is 19974916613. The reversal of 19974916607 is 70661947991.

It is not a de Polignac number, because 19974916607 - 2²⁶ = 19907807743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19974916307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40029644 + ... + 40030142.

It is an arithmetic number, because the mean of its divisors is an integer number (663693750).

Almost surely, 2^19974916607 is an apocalyptic number.

19974916607 is a deficient number, since it is larger than the sum of its proper divisors (1263283393).

19974916607 is a wasteful number, since it uses less digits than its factorization.

19974916607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 5143824, while the sum is 59.

The spelling of 19974916607 in words is "nineteen billion, nine hundred seventy-four million, nine hundred sixteen thousand, six hundred seven".