399085914780000 has 720 divisors, whose sum is σ = 1621127936203776. Its totient is φ = 91199364480000.

The previous prime is 399085914779971. The next prime is 399085914780017. The reversal of 399085914780000 is 87419580993.

399085914780000 is a `hidden beast` number, since 39 + 9 + 0 + 8 + 591 + 4 + 7 + 8 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 399085914780000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 6087027219 + ... + 6087092781.

Almost surely, 2^{399085914780000} is an apocalyptic number.

399085914780000 is a gapful number since it is divisible by the number (30) 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 399085914780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (810563968101888).

399085914780000 is an abundant number, since it is smaller than the sum of its proper divisors (1222042021423776).

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

399085914780000 is a wasteful number, since it uses less digits than its factorization.

399085914780000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70437 (or 70411 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 399085914780000 in words is "three hundred ninety-nine trillion, eighty-five billion, nine hundred fourteen million, seven hundred eighty thousand".