695819799720 has 48 divisors (see below), whose sum is σ = 2261414350260. Its totient is φ = 185551946496.

The previous prime is 695819799673. The next prime is 695819799749. The reversal of 695819799720 is 27997918596.

It can be written as a sum of positive squares in 2 ways, for example, as 681288461604 + 14531338116 = 825402^2 + 120546^2 .

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 11 ways as a sum of consecutive naturals, for example, 966416029 + ... + 966416748.

Almost surely, 2^695819799720 is an apocalyptic number.

695819799720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

695819799720 is an abundant number, since it is smaller than the sum of its proper divisors (1565594550540).

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

695819799720 is a wasteful number, since it uses less digits than its factorization.

695819799720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932832794 (or 1932832787 counting only the distinct ones).

The product of its (nonzero) digits is 154314720, while the sum is 72.

The spelling of 695819799720 in words is "six hundred ninety-five billion, eight hundred nineteen million, seven hundred ninety-nine thousand, seven hundred twenty".