10012621285409 has 2 divisors, whose sum is σ = 10012621285410. Its totient is φ = 10012621285408.

The previous prime is 10012621285391. The next prime is 10012621285417. The reversal of 10012621285409 is 90458212621001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8734997983009 + 1277623302400 = 2955503^2 + 1130320^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012621285409 - 2²⁰ = 10012620236833 is a prime.

It is not a weakly prime, because it can be changed into another prime (10012621281409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006310642704 + 5006310642705.

It is an arithmetic number, because the mean of its divisors is an integer number (5006310642705).

Almost surely, 2^{10012621285409} is an apocalyptic number.

It is an amenable number.

10012621285409 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012621285409 is an equidigital number, since it uses as much as digits as its factorization.

10012621285409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 10012621285409 in words is "ten trillion, twelve billion, six hundred twenty-one million, two hundred eighty-five thousand, four hundred nine".