138901962526 has 16 divisors (see below), whose sum is σ = 230200696224. Its totient is φ = 62523645184.

The previous prime is 138901962427. The next prime is 138901962527. The reversal of 138901962526 is 625269109831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138901962527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88811215 + ... + 88812778.

It is an arithmetic number, because the mean of its divisors is an integer number (14387543514).

Almost surely, 2^138901962526 is an apocalyptic number.

138901962526 is a deficient number, since it is larger than the sum of its proper divisors (91298733698).

138901962526 is a wasteful number, since it uses less digits than its factorization.

138901962526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177624035.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 138901962526 in words is "one hundred thirty-eight billion, nine hundred one million, nine hundred sixty-two thousand, five hundred twenty-six".