521151287941 has 2 divisors, whose sum is σ = 521151287942. Its totient is φ = 521151287940.

The previous prime is 521151287897. The next prime is 521151287953. The reversal of 521151287941 is 149782151125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 454511930625 + 66639357316 = 674175^2 + 258146^2 .

It is a cyclic number.

It is not a de Polignac number, because 521151287941 - 2¹³ = 521151279749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 521151287891 and 521151287900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (521151287141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260575643970 + 260575643971.

It is an arithmetic number, because the mean of its divisors is an integer number (260575643971).

Almost surely, 2^521151287941 is an apocalyptic number.

It is an amenable number.

521151287941 is a deficient number, since it is larger than the sum of its proper divisors (1).

521151287941 is an equidigital number, since it uses as much as digits as its factorization.

521151287941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 46.

The spelling of 521151287941 in words is "five hundred twenty-one billion, one hundred fifty-one million, two hundred eighty-seven thousand, nine hundred forty-one".