620125188545 has 8 divisors (see below), whose sum is σ = 745969666920. Its totient is φ = 494887190400.

The previous prime is 620125188541. The next prime is 620125188593. The reversal of 620125188545 is 545881521026.

It can be written as a sum of positive squares in 4 ways, for example, as 187682167729 + 432443020816 = 433223^2 + 657604^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 620125188545 - 2² = 620125188541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620125188545.

It is not an unprimeable number, because it can be changed into a prime (620125188541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151617806 + ... + 151621895.

It is an arithmetic number, because the mean of its divisors is an integer number (93246208365).

Almost surely, 2^620125188545 is an apocalyptic number.

It is an amenable number.

620125188545 is a deficient number, since it is larger than the sum of its proper divisors (125844478375).

620125188545 is a wasteful number, since it uses less digits than its factorization.

620125188545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303240115.

The product of its (nonzero) digits is 768000, while the sum is 47.

The spelling of 620125188545 in words is "six hundred twenty billion, one hundred twenty-five million, one hundred eighty-eight thousand, five hundred forty-five".