276049142639 has 4 divisors (see below), whose sum is σ = 276298060920. Its totient is φ = 275800224360.

The previous prime is 276049142627. The next prime is 276049142647. The reversal of 276049142639 is 936241940672.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 276049142639 - 2²⁸ = 275780707183 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 (276049142539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124457477 + ... + 124459694.

It is an arithmetic number, because the mean of its divisors is an integer number (69074515230).

Almost surely, 2^276049142639 is an apocalyptic number.

276049142639 is a deficient number, since it is larger than the sum of its proper divisors (248918281).

276049142639 is a wasteful number, since it uses less digits than its factorization.

276049142639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248918280.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 276049142639 in words is "two hundred seventy-six billion, forty-nine million, one hundred forty-two thousand, six hundred thirty-nine".