138589280830 has 192 divisors, whose sum is σ = 343433587392. Its totient is φ = 39580047360.

The previous prime is 138589280813. The next prime is 138589280831. The reversal of 138589280830 is 38082985831.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138589280831) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9592372 + ... + 9606808.

It is an arithmetic number, because the mean of its divisors is an integer number (1788716601).

Almost surely, 2^138589280830 is an apocalyptic number.

138589280830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138589280830 is an abundant number, since it is smaller than the sum of its proper divisors (204844306562).

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

138589280830 is a wasteful number, since it uses less digits than its factorization.

138589280830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14619 (or 14612 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 55.

The spelling of 138589280830 in words is "one hundred thirty-eight billion, five hundred eighty-nine million, two hundred eighty thousand, eight hundred thirty".