138174644510 has 16 divisors (see below), whose sum is σ = 284244983136. Its totient is φ = 47374163808.

The previous prime is 138174644479. The next prime is 138174644513. The reversal of 138174644510 is 15446471831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138174644513) by changing a digit.

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, 986961677 + ... + 986961816.

It is an arithmetic number, because the mean of its divisors is an integer number (17765311446).

Almost surely, 2^138174644510 is an apocalyptic number.

138174644510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138174644510 is an abundant number, since it is smaller than the sum of its proper divisors (146070338626).

138174644510 is a wasteful number, since it uses less digits than its factorization.

138174644510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973923507.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 138174644510 in words is "one hundred thirty-eight billion, one hundred seventy-four million, six hundred forty-four thousand, five hundred ten".