64877689467 has 12 divisors (see below), whose sum is σ = 94765165560. Its totient is φ = 42765817248.

The previous prime is 64877689381. The next prime is 64877689517. The reversal of 64877689467 is 76498677846.

It is a happy number.

64877689467 is a `hidden beast` number, since 6 + 4 + 87 + 7 + 6 + 89 + 467 = 666.

It is not a de Polignac number, because 64877689467 - 2¹⁸ = 64877427323 is a prime.

It is a super-2 number, since 2×64877689467² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64877689395 and 64877689404.

It is not an unprimeable number, because it can be changed into a prime (64877689367) 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, 40497133 + ... + 40498734.

It is an arithmetic number, because the mean of its divisors is an integer number (7897097130).

Almost surely, 2^64877689467 is an apocalyptic number.

64877689467 is a deficient number, since it is larger than the sum of its proper divisors (29887476093).

64877689467 is a wasteful number, since it uses less digits than its factorization.

64877689467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80995962 (or 80995959 counting only the distinct ones).

The product of its digits is 682795008, while the sum is 72.

The spelling of 64877689467 in words is "sixty-four billion, eight hundred seventy-seven million, six hundred eighty-nine thousand, four hundred sixty-seven".