699486453783420 has 192 divisors, whose sum is σ = 2080888870717440. Its totient is φ = 174955495309312.

The previous prime is 699486453783373. The next prime is 699486453783421. The reversal of 699486453783420 is 24387354684996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699486453783421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 568062529 + ... + 569292551.

It is an arithmetic number, because the mean of its divisors is an integer number (10837962868320).

Almost surely, 2^{699486453783420} is an apocalyptic number.

699486453783420 is a gapful number since it is divisible by the number (60) 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 699486453783420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1040444435358720).

699486453783420 is an abundant number, since it is smaller than the sum of its proper divisors (1381402416934020).

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

699486453783420 is a wasteful number, since it uses less digits than its factorization.

699486453783420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231964 (or 1231962 counting only the distinct ones).

The product of its (nonzero) digits is 7524679680, while the sum is 78.

The spelling of 699486453783420 in words is "six hundred ninety-nine trillion, four hundred eighty-six billion, four hundred fifty-three million, seven hundred eighty-three thousand, four hundred twenty".