139448403494400 has 2880 divisors, whose sum is σ = 662710691301120. Its totient is φ = 25338662092800.

The previous prime is 139448403494371. The next prime is 139448403494401. The reversal of 139448403494400 is 4494304844931.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139448403494401) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 5112293562 + ... + 5112320838.

It is an arithmetic number, because the mean of its divisors is an integer number (230107878924).

Almost surely, 2^{139448403494400} is an apocalyptic number.

139448403494400 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 139448403494400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331355345650560).

139448403494400 is an abundant number, since it is smaller than the sum of its proper divisors (523262287806720).

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

139448403494400 is a wasteful number, since it uses less digits than its factorization.

139448403494400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27365 (or 27337 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 57.

The spelling of 139448403494400 in words is "one hundred thirty-nine trillion, four hundred forty-eight billion, four hundred three million, four hundred ninety-four thousand, four hundred".