695821378725 has 96 divisors (see below), whose sum is σ = 1396367472000. Its totient is φ = 336905049600.

The previous prime is 695821378723. The next prime is 695821378753. The reversal of 695821378725 is 527873128596.

It is not a de Polignac number, because 695821378725 - 2¹ = 695821378723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (695821378723) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5378601 + ... + 5506449.

It is an arithmetic number, because the mean of its divisors is an integer number (14545494500).

Almost surely, 2^695821378725 is an apocalyptic number.

It is an amenable number.

695821378725 is an abundant number, since it is smaller than the sum of its proper divisors (700546093275).

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

695821378725 is a wasteful number, since it uses less digits than its factorization.

695821378725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128612 (or 128601 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 63.

The spelling of 695821378725 in words is "six hundred ninety-five billion, eight hundred twenty-one million, three hundred seventy-eight thousand, seven hundred twenty-five".