695687748840 has 480 divisors, whose sum is σ = 2723028295680. Its totient is φ = 158839978752.

The previous prime is 695687748829. The next prime is 695687748871. The reversal of 695687748840 is 48847786596.

695687748840 is a `hidden beast` number, since 69 + 5 + 6 + 87 + 7 + 488 + 4 + 0 = 666.

695687748840 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 an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 194161689 + ... + 194165271.

It is an arithmetic number, because the mean of its divisors is an integer number (5672975616).

Almost surely, 2^695687748840 is an apocalyptic number.

695687748840 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 695687748840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1361514147840).

695687748840 is an abundant number, since it is smaller than the sum of its proper divisors (2027340546840).

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

695687748840 is a wasteful number, since it uses less digits than its factorization.

695687748840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4843 (or 4823 counting only the distinct ones).

The product of its (nonzero) digits is 650280960, while the sum is 72.

The spelling of 695687748840 in words is "six hundred ninety-five billion, six hundred eighty-seven million, seven hundred forty-eight thousand, eight hundred forty".