17919945942996 has 24 divisors (see below), whose sum is σ = 41868883928704. Its totient is φ = 5965361496000.

The previous prime is 17919945942979. The next prime is 17919945943013. The reversal of 17919945942996 is 69924954991971.

It is an interprime number because it is at equal distance from previous prime (17919945942979) and next prime (17919945943013).

It is a super-2 number, since 2×17919945942996² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994217905 + ... + 994235928.

Almost surely, 2^{17919945942996} is an apocalyptic number.

It is an amenable number.

17919945942996 is an abundant number, since it is smaller than the sum of its proper divisors (23948937985708).

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

17919945942996 is a wasteful number, since it uses less digits than its factorization.

17919945942996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988454591 (or 1988454589 counting only the distinct ones).

The product of its digits is 3571283520, while the sum is 84.

The spelling of 17919945942996 in words is "seventeen trillion, nine hundred nineteen billion, nine hundred forty-five million, nine hundred forty-two thousand, nine hundred ninety-six".