325765748621 has 2 divisors, whose sum is σ = 325765748622. Its totient is φ = 325765748620.

The previous prime is 325765748599. The next prime is 325765748629. The reversal of 325765748621 is 126847567523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323271844900 + 2493903721 = 568570^2 + 49939^2 .

It is a cyclic number.

It is not a de Polignac number, because 325765748621 - 2¹⁸ = 325765486477 is a prime.

It is a super-2 number, since 2×325765748621² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325765748629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162882874310 + 162882874311.

It is an arithmetic number, because the mean of its divisors is an integer number (162882874311).

Almost surely, 2^325765748621 is an apocalyptic number.

It is an amenable number.

325765748621 is a deficient number, since it is larger than the sum of its proper divisors (1).

325765748621 is an equidigital number, since it uses as much as digits as its factorization.

325765748621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16934400, while the sum is 56.

The spelling of 325765748621 in words is "three hundred twenty-five billion, seven hundred sixty-five million, seven hundred forty-eight thousand, six hundred twenty-one".