1977913132 has 36 divisors (see below), whose sum is σ = 3763342296. Its totient is φ = 909168000.

The previous prime is 1977913121. The next prime is 1977913139. The reversal of 1977913132 is 2313197791.

It is not an unprimeable number, because it can be changed into a prime (1977913139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163848 + ... + 175504.

It is an arithmetic number, because the mean of its divisors is an integer number (104537286).

Almost surely, 2^1977913132 is an apocalyptic number.

It is an amenable number.

1977913132 is a deficient number, since it is larger than the sum of its proper divisors (1785429164).

1977913132 is a wasteful number, since it uses less digits than its factorization.

1977913132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11938 (or 11923 counting only the distinct ones).

The product of its digits is 71442, while the sum is 43.

The square root of 1977913132 is about 44473.7353052338. The cubic root of 1977913132 is about 1255.2659197464.

The spelling of 1977913132 in words is "one billion, nine hundred seventy-seven million, nine hundred thirteen thousand, one hundred thirty-two".