43385139000 has 960 divisors, whose sum is σ = 187083056160. Its totient is φ = 9318758400.

The previous prime is 43385138999. The next prime is 43385139053. The reversal of 43385139000 is 93158334.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 67472679 + ... + 67473321.

Almost surely, 2^43385139000 is an apocalyptic number.

43385139000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43385139000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93541528080).

43385139000 is an abundant number, since it is smaller than the sum of its proper divisors (143697917160).

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

43385139000 is a wasteful number, since it uses less digits than its factorization.

43385139000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 43385139000 in words is "forty-three billion, three hundred eighty-five million, one hundred thirty-nine thousand".