19269709136 has 10 divisors (see below), whose sum is σ = 37335061482. Its totient is φ = 9634854560.

The previous prime is 19269709103. The next prime is 19269709159. The reversal of 19269709136 is 63190796291.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19059459136 + 210250000 = 138056^2 + 14500^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602178395 + ... + 602178426.

Almost surely, 2^19269709136 is an apocalyptic number.

19269709136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19269709136 is a deficient number, since it is larger than the sum of its proper divisors (18065352346).

19269709136 is a wasteful number, since it uses less digits than its factorization.

19269709136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204356829 (or 1204356823 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 53.

The spelling of 19269709136 in words is "nineteen billion, two hundred sixty-nine million, seven hundred nine thousand, one hundred thirty-six".