1977162286 has 16 divisors (see below), whose sum is σ = 3239832960. Its totient is φ = 897466680.

The previous prime is 1977162281. The next prime is 1977162293. The reversal of 1977162286 is 6822617791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1977162281) 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 7 ways as a sum of consecutive naturals, for example, 45816 + ... + 77803.

It is an arithmetic number, because the mean of its divisors is an integer number (202489560).

Almost surely, 2^1977162286 is an apocalyptic number.

1977162286 is a deficient number, since it is larger than the sum of its proper divisors (1262670674).

1977162286 is a wasteful number, since it uses less digits than its factorization.

1977162286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124359.

The product of its digits is 508032, while the sum is 49.

The square root of 1977162286 is about 44465.2930497484. The cubic root of 1977162286 is about 1255.1070602783.

It can be divided in two parts, 197716 and 2286, that added together give a palindrome (200002).

The spelling of 1977162286 in words is "one billion, nine hundred seventy-seven million, one hundred sixty-two thousand, two hundred eighty-six".