276905780122 has 4 divisors (see below), whose sum is σ = 415358670186. Its totient is φ = 138452890060.

The previous prime is 276905780101. The next prime is 276905780141. The reversal of 276905780122 is 221087509672.

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

It can be written as a sum of positive squares in only one way, i.e., 255630348801 + 21275431321 = 505599^2 + 145861^2 .

It is a super-2 number, since 2×276905780122² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69226445029 + ... + 69226445032.

Almost surely, 2^276905780122 is an apocalyptic number.

276905780122 is a deficient number, since it is larger than the sum of its proper divisors (138452890064).

276905780122 is a wasteful number, since it uses less digits than its factorization.

276905780122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138452890063.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 276905780122 in words is "two hundred seventy-six billion, nine hundred five million, seven hundred eighty thousand, one hundred twenty-two".