10387989061 has 2 divisors, whose sum is σ = 10387989062. Its totient is φ = 10387989060.

The previous prime is 10387989037. The next prime is 10387989097. The reversal of 10387989061 is 16098978301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10144316961 + 243672100 = 100719^2 + 15610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10387989061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10387989761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5193994530 + 5193994531.

It is an arithmetic number, because the mean of its divisors is an integer number (5193994531).

Almost surely, 2^10387989061 is an apocalyptic number.

It is an amenable number.

10387989061 is a deficient number, since it is larger than the sum of its proper divisors (1).

10387989061 is an equidigital number, since it uses as much as digits as its factorization.

10387989061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 52.

The spelling of 10387989061 in words is "ten billion, three hundred eighty-seven million, nine hundred eighty-nine thousand, sixty-one".