625087472687668 has 48 divisors (see below), whose sum is σ = 1152010410264000. Its totient is φ = 295956895074048.

The previous prime is 625087472687647. The next prime is 625087472687669. The reversal of 625087472687668 is 866786274780526.

It is a super-2 number, since 2×625087472687668² (a number of 30 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (82) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 625087472687591 and 625087472687600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625087472687669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4826530098 + ... + 4826659606.

It is an arithmetic number, because the mean of its divisors is an integer number (24000216880500).

Almost surely, 2^{625087472687668} is an apocalyptic number.

It is an amenable number.

625087472687668 is a deficient number, since it is larger than the sum of its proper divisors (526922937576332).

625087472687668 is a wasteful number, since it uses less digits than its factorization.

625087472687668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158464 (or 158462 counting only the distinct ones).

The product of its (nonzero) digits is 18207866880, while the sum is 82.

The spelling of 625087472687668 in words is "six hundred twenty-five trillion, eighty-seven billion, four hundred seventy-two million, six hundred eighty-seven thousand, six hundred sixty-eight".