19929452086 has 16 divisors (see below), whose sum is σ = 30015806688. Its totient is φ = 9924264000.

The previous prime is 19929452083. The next prime is 19929452107. The reversal of 19929452086 is 68025492991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19929452083) 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, 486351 + ... + 525733.

It is an arithmetic number, because the mean of its divisors is an integer number (1875987918).

Almost surely, 2^19929452086 is an apocalyptic number.

19929452086 is a deficient number, since it is larger than the sum of its proper divisors (10086354602).

19929452086 is a wasteful number, since it uses less digits than its factorization.

19929452086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40407.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 19929452086 in words is "nineteen billion, nine hundred twenty-nine million, four hundred fifty-two thousand, eighty-six".