138784167233228 has 12 divisors (see below), whose sum is σ = 264951591990792. Its totient is φ = 63083712378720.

The previous prime is 138784167233221. The next prime is 138784167233263. The reversal of 138784167233228 is 822332761487831.

It is a happy number.

It is a super-2 number, since 2×138784167233228² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (138784167233221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1577092809425 + ... + 1577092809512.

It is an arithmetic number, because the mean of its divisors is an integer number (22079299332566).

Almost surely, 2^{138784167233228} is an apocalyptic number.

It is an amenable number.

138784167233228 is a deficient number, since it is larger than the sum of its proper divisors (126167424757564).

138784167233228 is a wasteful number, since it uses less digits than its factorization.

138784167233228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154185618952 (or 3154185618950 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 65.

The spelling of 138784167233228 in words is "one hundred thirty-eight trillion, seven hundred eighty-four billion, one hundred sixty-seven million, two hundred thirty-three thousand, two hundred twenty-eight".