276945901789 has 16 divisors (see below), whose sum is σ = 280387254784. Its totient is φ = 273520119600.

The previous prime is 276945901753. The next prime is 276945901823. The reversal of 276945901789 is 987109549672.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 276945901789 - 2¹⁵ = 276945869021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276945901709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77552374 + ... + 77555944.

It is an arithmetic number, because the mean of its divisors is an integer number (17524203424).

Almost surely, 2^276945901789 is an apocalyptic number.

It is an amenable number.

276945901789 is a deficient number, since it is larger than the sum of its proper divisors (3441352995).

276945901789 is a wasteful number, since it uses less digits than its factorization.

276945901789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488.

The product of its (nonzero) digits is 68584320, while the sum is 67.

The spelling of 276945901789 in words is "two hundred seventy-six billion, nine hundred forty-five million, nine hundred one thousand, seven hundred eighty-nine".