699348744864 has 576 divisors, whose sum is σ = 2598592389120. Its totient is φ = 172994088960.

The previous prime is 699348744859. The next prime is 699348744877. The reversal of 699348744864 is 468447843996.

699348744864 is a `hidden beast` number, since 6 + 99 + 34 + 8 + 7 + 448 + 64 = 666.

699348744864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 699348744792 and 699348744801.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 121898604 + ... + 121904340.

It is an arithmetic number, because the mean of its divisors is an integer number (4511445120).

Almost surely, 2^699348744864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 699348744864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299296194560).

699348744864 is an abundant number, since it is smaller than the sum of its proper divisors (1899243644256).

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

699348744864 is a wasteful number, since it uses less digits than its factorization.

699348744864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6033 (or 6022 counting only the distinct ones).

The product of its digits is 1003290624, while the sum is 72.

The spelling of 699348744864 in words is "six hundred ninety-nine billion, three hundred forty-eight million, seven hundred forty-four thousand, eight hundred sixty-four".