1699394044320 has 768 divisors, whose sum is σ = 7101718364160. Its totient is φ = 371356876800.

The previous prime is 1699394044303. The next prime is 1699394044331. The reversal of 1699394044320 is 234404939961.

1699394044320 is a `hidden beast` number, since 1 + 6 + 9 + 93 + 94 + 0 + 443 + 20 = 666.

It is a super-2 number, since 2×1699394044320² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 127 ways as a sum of consecutive naturals, for example, 77796600 + ... + 77818440.

It is an arithmetic number, because the mean of its divisors is an integer number (9247029120).

Almost surely, 2^{1699394044320} is an apocalyptic number.

1699394044320 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 1699394044320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3550859182080).

1699394044320 is an abundant number, since it is smaller than the sum of its proper divisors (5402324319840).

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

1699394044320 is a wasteful number, since it uses less digits than its factorization.

1699394044320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21986 (or 21972 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The spelling of 1699394044320 in words is "one trillion, six hundred ninety-nine billion, three hundred ninety-four million, forty-four thousand, three hundred twenty".