752625187661 has 2 divisors, whose sum is σ = 752625187662. Its totient is φ = 752625187660.

The previous prime is 752625187579. The next prime is 752625187709. The reversal of 752625187661 is 166781526257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 683629658761 + 68995528900 = 826819^2 + 262670^2 .

It is a cyclic number.

It is not a de Polignac number, because 752625187661 - 2¹⁸ = 752624925517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 752625187597 and 752625187606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (752625187861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 376312593830 + 376312593831.

It is an arithmetic number, because the mean of its divisors is an integer number (376312593831).

Almost surely, 2^752625187661 is an apocalyptic number.

It is an amenable number.

752625187661 is a deficient number, since it is larger than the sum of its proper divisors (1).

752625187661 is an equidigital number, since it uses as much as digits as its factorization.

752625187661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8467200, while the sum is 56.

The spelling of 752625187661 in words is "seven hundred fifty-two billion, six hundred twenty-five million, one hundred eighty-seven thousand, six hundred sixty-one".