199926769896 has 48 divisors (see below), whose sum is σ = 618820956000. Its totient is φ = 57121934112.

The previous prime is 199926769883. The next prime is 199926769907. The reversal of 199926769896 is 698967629991.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198339546 + ... + 198340553.

It is an arithmetic number, because the mean of its divisors is an integer number (12892103250).

Almost surely, 2^199926769896 is an apocalyptic number.

It is an amenable number.

199926769896 is an abundant number, since it is smaller than the sum of its proper divisors (418894186104).

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

199926769896 is a wasteful number, since it uses less digits than its factorization.

199926769896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396680118 (or 396680111 counting only the distinct ones).

The product of its digits is 1428513408, while the sum is 81.

The spelling of 199926769896 in words is "one hundred ninety-nine billion, nine hundred twenty-six million, seven hundred sixty-nine thousand, eight hundred ninety-six".