1977011163 has 12 divisors (see below), whose sum is σ = 2856292920. Its totient is φ = 1317725856.

The previous prime is 1977011137. The next prime is 1977011173. The reversal of 1977011163 is 3611107791.

It is not a de Polignac number, because 1977011163 - 2¹⁴ = 1976994779 is a prime.

It is a super-2 number, since 2×1977011163² = 7817146277253225138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1977011173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26628 + ... + 68286.

It is an arithmetic number, because the mean of its divisors is an integer number (238024410).

Almost surely, 2^1977011163 is an apocalyptic number.

1977011163 is a deficient number, since it is larger than the sum of its proper divisors (879281757).

1977011163 is a wasteful number, since it uses less digits than its factorization.

1977011163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46938 (or 46935 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 1977011163 is about 44463.5936806732. The cubic root of 1977011163 is about 1255.0750817236.

The spelling of 1977011163 in words is "one billion, nine hundred seventy-seven million, eleven thousand, one hundred sixty-three".