138451262895548 has 12 divisors (see below), whose sum is σ = 248838080609832. Its totient is φ = 67354668435600.

The previous prime is 138451262895541. The next prime is 138451262895571. The reversal of 138451262895548 is 845598262154831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138451262895541) 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, 467740752878 + ... + 467740753173.

It is an arithmetic number, because the mean of its divisors is an integer number (20736506717486).

Almost surely, 2^{138451262895548} is an apocalyptic number.

It is an amenable number.

138451262895548 is a deficient number, since it is larger than the sum of its proper divisors (110386817714284).

138451262895548 is a wasteful number, since it uses less digits than its factorization.

138451262895548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935481506092 (or 935481506090 counting only the distinct ones).

The product of its digits is 663552000, while the sum is 71.

The spelling of 138451262895548 in words is "one hundred thirty-eight trillion, four hundred fifty-one billion, two hundred sixty-two million, eight hundred ninety-five thousand, five hundred forty-eight".