276706631621 has 8 divisors (see below), whose sum is σ = 316239458304. Its totient is φ = 237174631920.

The previous prime is 276706631557. The next prime is 276706631633. The reversal of 276706631621 is 126136607672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 276706631621 - 2⁶ = 276706631557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276706631221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918716 + ... + 1182138.

It is an arithmetic number, because the mean of its divisors is an integer number (39529932288).

Almost surely, 2^276706631621 is an apocalyptic number.

It is an amenable number.

276706631621 is a deficient number, since it is larger than the sum of its proper divisors (39532826683).

276706631621 is a wasteful number, since it uses less digits than its factorization.

276706631621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413491.

The product of its (nonzero) digits is 762048, while the sum is 47.

The spelling of 276706631621 in words is "two hundred seventy-six billion, seven hundred six million, six hundred thirty-one thousand, six hundred twenty-one".