19408738098 has 16 divisors (see below), whose sum is σ = 38942294976. Its totient is φ = 6448776240.

The previous prime is 19408738087. The next prime is 19408738183. The reversal of 19408738098 is 89083780491.

It is a super-2 number, since 2×19408738098² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5198761 + ... + 5202492.

It is an arithmetic number, because the mean of its divisors is an integer number (2433893436).

Almost surely, 2^19408738098 is an apocalyptic number.

19408738098 is an abundant number, since it is smaller than the sum of its proper divisors (19533556878).

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

19408738098 is a wasteful number, since it uses less digits than its factorization.

19408738098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10401569.

The product of its (nonzero) digits is 3483648, while the sum is 57.

The spelling of 19408738098 in words is "nineteen billion, four hundred eight million, seven hundred thirty-eight thousand, ninety-eight".