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10040977769 is a prime number
BaseRepresentation
bin10010101100111110…
…10010100101101001
3221220202212112001112
421112133102211221
5131030442242034
64340205000105
7503552621444
oct112637224551
927822775045
1010040977769
114292963239
121b42853035
13c40337084
146b378c65b
153db7a47ce
hex2567d2969

10040977769 has 2 divisors, whose sum is σ = 10040977770. Its totient is φ = 10040977768.

The previous prime is 10040977697. The next prime is 10040977781. The reversal of 10040977769 is 96777904001.

It is a happy number.

Together with previous prime (10040977697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6120715225 + 3920262544 = 78235^2 + 62612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10040977769 is a prime.

It is a super-2 number, since 2×100409777692 (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10040977799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5020488884 + 5020488885.

It is an arithmetic number, because the mean of its divisors is an integer number (5020488885).

Almost surely, 210040977769 is an apocalyptic number.

It is an amenable number.

10040977769 is a deficient number, since it is larger than the sum of its proper divisors (1).

10040977769 is an equidigital number, since it uses as much as digits as its factorization.

10040977769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 50.

The spelling of 10040977769 in words is "ten billion, forty million, nine hundred seventy-seven thousand, seven hundred sixty-nine".