1025769430321 has 2 divisors, whose sum is σ = 1025769430322. Its totient is φ = 1025769430320.

The previous prime is 1025769430303. The next prime is 1025769430349. The reversal of 1025769430321 is 1230349675201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 984748599025 + 41020831296 = 992345^2 + 202536^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025769430321 - 2¹¹ = 1025769428273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1025769430381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512884715160 + 512884715161.

It is an arithmetic number, because the mean of its divisors is an integer number (512884715161).

Almost surely, 2^{1025769430321} is an apocalyptic number.

It is an amenable number.

1025769430321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025769430321 is an equidigital number, since it uses as much as digits as its factorization.

1025769430321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 1025769430321 in words is "one trillion, twenty-five billion, seven hundred sixty-nine million, four hundred thirty thousand, three hundred twenty-one".