19752673138 has 16 divisors (see below), whose sum is σ = 32932417536. Its totient is φ = 8809081840.

The previous prime is 19752673103. The next prime is 19752673153. The reversal of 19752673138 is 83137625791.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8469106 + ... + 8471437.

It is an arithmetic number, because the mean of its divisors is an integer number (2058276096).

Almost surely, 2^19752673138 is an apocalyptic number.

19752673138 is a deficient number, since it is larger than the sum of its proper divisors (13179744398).

19752673138 is a wasteful number, since it uses less digits than its factorization.

19752673138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16940609.

The product of its digits is 1905120, while the sum is 52.

The spelling of 19752673138 in words is "nineteen billion, seven hundred fifty-two million, six hundred seventy-three thousand, one hundred thirty-eight".