10389806477 has 2 divisors, whose sum is σ = 10389806478. Its totient is φ = 10389806476.

The previous prime is 10389806473. The next prime is 10389806503. The reversal of 10389806477 is 77460898301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8801066596 + 1588739881 = 93814^2 + 39859^2 .

It is a cyclic number.

It is not a de Polignac number, because 10389806477 - 2² = 10389806473 is a prime.

It is a super-2 number, since 2×10389806477² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10389806473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5194903238 + 5194903239.

It is an arithmetic number, because the mean of its divisors is an integer number (5194903239).

Almost surely, 2^10389806477 is an apocalyptic number.

It is an amenable number.

10389806477 is a deficient number, since it is larger than the sum of its proper divisors (1).

10389806477 is an equidigital number, since it uses as much as digits as its factorization.

10389806477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 10389806477 in words is "ten billion, three hundred eighty-nine million, eight hundred six thousand, four hundred seventy-seven".