67467476477 has 4 divisors (see below), whose sum is σ = 67736271456. Its totient is φ = 67198681500.

The previous prime is 67467476423. The next prime is 67467476501. The reversal of 67467476477 is 77467476476.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67467476477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67467476777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134397113 + ... + 134397614.

It is an arithmetic number, because the mean of its divisors is an integer number (16934067864).

Almost surely, 2^67467476477 is an apocalyptic number.

It is an amenable number.

67467476477 is a deficient number, since it is larger than the sum of its proper divisors (268794979).

67467476477 is a wasteful number, since it uses less digits than its factorization.

67467476477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268794978.

The product of its digits is 232339968, while the sum is 65.

Subtracting 67467476477 from its reverse (77467476476), we obtain a palindrome (9999999999).

The spelling of 67467476477 in words is "sixty-seven billion, four hundred sixty-seven million, four hundred seventy-six thousand, four hundred seventy-seven".