67400070677 has 4 divisors (see below), whose sum is σ = 67402324896. Its totient is φ = 67397816460.

The previous prime is 67400070671. The next prime is 67400070763. The reversal of 67400070677 is 77607000476.

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 67400070677 - 2¹⁸ = 67399808533 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 (67400070671) 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, 1081649 + ... + 1142262.

It is an arithmetic number, because the mean of its divisors is an integer number (16850581224).

Almost surely, 2^67400070677 is an apocalyptic number.

It is an amenable number.

67400070677 is a deficient number, since it is larger than the sum of its proper divisors (2254219).

67400070677 is a wasteful number, since it uses less digits than its factorization.

67400070677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254218.

The product of its (nonzero) digits is 345744, while the sum is 44.

The spelling of 67400070677 in words is "sixty-seven billion, four hundred million, seventy thousand, six hundred seventy-seven".