19272909090 has 16 divisors (see below), whose sum is σ = 46254981888. Its totient is φ = 5139442416.

The previous prime is 19272908983. The next prime is 19272909091. The reversal of 19272909090 is 9090927291.

It is not an unprimeable number, because it can be changed into a prime (19272909091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321215122 + ... + 321215181.

It is an arithmetic number, because the mean of its divisors is an integer number (2890936368).

Almost surely, 2^19272909090 is an apocalyptic number.

19272909090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19272909090 is an abundant number, since it is smaller than the sum of its proper divisors (26982072798).

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

19272909090 is a wasteful number, since it uses less digits than its factorization.

19272909090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642430313.

The product of its (nonzero) digits is 183708, while the sum is 48.

The spelling of 19272909090 in words is "nineteen billion, two hundred seventy-two million, nine hundred nine thousand, ninety".