977218459 has 12 divisors (see below), whose sum is σ = 1123352944. Its totient is φ = 832745232.

The previous prime is 977218441. The next prime is 977218471. The reversal of 977218459 is 954812779.

It is not a de Polignac number, because 977218459 - 2⁷ = 977218331 is a prime.

It is a super-2 number, since 2×977218459² = 1909911833220669362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (977218409) 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 11 ways as a sum of consecutive naturals, for example, 222109 + ... + 226465.

Almost surely, 2^977218459 is an apocalyptic number.

977218459 is a deficient number, since it is larger than the sum of its proper divisors (146134485).

977218459 is an equidigital number, since it uses as much as digits as its factorization.

977218459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4722 (or 4543 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 52.

The square root of 977218459 is about 31260.4935821557. The cubic root of 977218459 is about 992.3477453633.

The spelling of 977218459 in words is "nine hundred seventy-seven million, two hundred eighteen thousand, four hundred fifty-nine".