276985997379438 has 16 divisors (see below), whose sum is σ = 554112918742656. Its totient is φ = 92305178462520.

The previous prime is 276985997379433. The next prime is 276985997379451. The reversal of 276985997379438 is 834973799589672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276985997379433) 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, 5871807106 + ... + 5871854277.

It is an arithmetic number, because the mean of its divisors is an integer number (34632057421416).

Almost surely, 2^{276985997379438} is an apocalyptic number.

276985997379438 is an abundant number, since it is smaller than the sum of its proper divisors (277126921363218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

276985997379438 is a wasteful number, since it uses less digits than its factorization.

276985997379438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11743665319.

The product of its digits is 311098475520, while the sum is 96.

The spelling of 276985997379438 in words is "two hundred seventy-six trillion, nine hundred eighty-five billion, nine hundred ninety-seven million, three hundred seventy-nine thousand, four hundred thirty-eight".