276387890389 has 16 divisors (see below), whose sum is σ = 305047814400. Its totient is φ = 248862833856.

The previous prime is 276387890381. The next prime is 276387890393. The reversal of 276387890389 is 983098783672.

It is not a de Polignac number, because 276387890389 - 2³ = 276387890381 is a prime.

It is a super-3 number, since 3×276387890389³ (a number of 35 digits) contains 333 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276387890381) 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, 1535974 + ... + 1706455.

It is an arithmetic number, because the mean of its divisors is an integer number (19065488400).

Almost surely, 2^276387890389 is an apocalyptic number.

It is an amenable number.

276387890389 is a deficient number, since it is larger than the sum of its proper divisors (28659924011).

276387890389 is a wasteful number, since it uses less digits than its factorization.

276387890389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242604.

The product of its (nonzero) digits is 219469824, while the sum is 70.

The spelling of 276387890389 in words is "two hundred seventy-six billion, three hundred eighty-seven million, eight hundred ninety thousand, three hundred eighty-nine".