67622100479 has 4 divisors (see below), whose sum is σ = 67622761584. Its totient is φ = 67621439376.

The previous prime is 67622100473. The next prime is 67622100593. The reversal of 67622100479 is 97400122676.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 67622100479 - 2²⁰ = 67621051903 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 (67622100473) 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, 140822 + ... + 393795.

It is an arithmetic number, because the mean of its divisors is an integer number (16905690396).

Almost surely, 2^67622100479 is an apocalyptic number.

67622100479 is a deficient number, since it is larger than the sum of its proper divisors (661105).

67622100479 is a wasteful number, since it uses less digits than its factorization.

67622100479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661104.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 67622100479 in words is "sixty-seven billion, six hundred twenty-two million, one hundred thousand, four hundred seventy-nine".