138463419667880 has 64 divisors (see below), whose sum is σ = 319485441464640. Its totient is φ = 53978960835072.

The previous prime is 138463419667877. The next prime is 138463419667919. The reversal of 138463419667880 is 88766914364831.

It is a super-2 number, since 2×138463419667880² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 138463419667798 and 138463419667807.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87290534 + ... + 88862613.

It is an arithmetic number, because the mean of its divisors is an integer number (4991960022885).

Almost surely, 2^{138463419667880} is an apocalyptic number.

138463419667880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138463419667880 is an abundant number, since it is smaller than the sum of its proper divisors (181022021796760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138463419667880 is a wasteful number, since it uses less digits than its factorization.

138463419667880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176153658 (or 176153654 counting only the distinct ones).

The product of its (nonzero) digits is 1003290624, while the sum is 74.

The spelling of 138463419667880 in words is "one hundred thirty-eight trillion, four hundred sixty-three billion, four hundred nineteen million, six hundred sixty-seven thousand, eight hundred eighty".