139803373440 has 256 divisors, whose sum is σ = 511111065600. Its totient is φ = 36078151680.

The previous prime is 139803373439. The next prime is 139803373487. The reversal of 139803373440 is 44373308931.

It is a happy number.

139803373440 is a `hidden beast` number, since 1 + 39 + 80 + 33 + 73 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 405189 + ... + 666171.

It is an arithmetic number, because the mean of its divisors is an integer number (1996527600).

Almost surely, 2^139803373440 is an apocalyptic number.

139803373440 is a gapful number since it is divisible by the number (10) 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 139803373440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255555532800).

139803373440 is an abundant number, since it is smaller than the sum of its proper divisors (371307692160).

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

139803373440 is a wasteful number, since it uses less digits than its factorization.

139803373440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261042 (or 261024 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 139803373440 in words is "one hundred thirty-nine billion, eight hundred three million, three hundred seventy-three thousand, four hundred forty".