1976130877 has 4 divisors (see below), whose sum is σ = 2258435296. Its totient is φ = 1693826460.

The previous prime is 1976130857. The next prime is 1976130889. The reversal of 1976130877 is 7780316791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1976130877 - 2¹¹ = 1976128829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1976130877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1976130857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141152199 + ... + 141152212.

It is an arithmetic number, because the mean of its divisors is an integer number (564608824).

Almost surely, 2^1976130877 is an apocalyptic number.

It is an amenable number.

1976130877 is a deficient number, since it is larger than the sum of its proper divisors (282304419).

1976130877 is an equidigital number, since it uses as much as digits as its factorization.

1976130877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282304418.

The product of its (nonzero) digits is 444528, while the sum is 49.

The square root of 1976130877 is about 44453.6936260644. The cubic root of 1976130877 is about 1254.8887754004. Note that the first 3 decimals are identical.

The spelling of 1976130877 in words is "one billion, nine hundred seventy-six million, one hundred thirty thousand, eight hundred seventy-seven".