10240621602481 has 2 divisors, whose sum is σ = 10240621602482. Its totient is φ = 10240621602480.

The previous prime is 10240621602461. The next prime is 10240621602511. The reversal of 10240621602481 is 18420612604201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5324463950400 + 4916157652081 = 2307480^2 + 2217241^2 .

It is an emirp because it is prime and its reverse (18420612604201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10240621602481 is a prime.

It is a super-2 number, since 2×10240621602481² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10240621602481.

It is not a weakly prime, because it can be changed into another prime (10240621602461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5120310801240 + 5120310801241.

It is an arithmetic number, because the mean of its divisors is an integer number (5120310801241).

Almost surely, 2^{10240621602481} is an apocalyptic number.

It is an amenable number.

10240621602481 is a deficient number, since it is larger than the sum of its proper divisors (1).

10240621602481 is an equidigital number, since it uses as much as digits as its factorization.

10240621602481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 10240621602481 in words is "ten trillion, two hundred forty billion, six hundred twenty-one million, six hundred two thousand, four hundred eighty-one".