67604624461 has 4 divisors (see below), whose sum is σ = 73750499424. Its totient is φ = 61458749500.

The previous prime is 67604624449. The next prime is 67604624491. The reversal of 67604624461 is 16442640676.

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 not a de Polignac number, because 67604624461 - 2⁹ = 67604623949 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 (67604624441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3072937465 + ... + 3072937486.

It is an arithmetic number, because the mean of its divisors is an integer number (18437624856).

Almost surely, 2^67604624461 is an apocalyptic number.

It is an amenable number.

67604624461 is a deficient number, since it is larger than the sum of its proper divisors (6145874963).

67604624461 is a wasteful number, since it uses less digits than its factorization.

67604624461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6145874962.

The product of its (nonzero) digits is 1161216, while the sum is 46.

The spelling of 67604624461 in words is "sixty-seven billion, six hundred four million, six hundred twenty-four thousand, four hundred sixty-one".