67651464775 has 6 divisors (see below), whose sum is σ = 83887816352. Its totient is φ = 54121171800.

The previous prime is 67651464739. The next prime is 67651464791. The reversal of 67651464775 is 57746415676.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-67651464775 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1353029271 + ... + 1353029320.

Almost surely, 2^67651464775 is an apocalyptic number.

67651464775 is a deficient number, since it is larger than the sum of its proper divisors (16236351577).

67651464775 is a wasteful number, since it uses less digits than its factorization.

67651464775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706058601 (or 2706058596 counting only the distinct ones).

The product of its digits is 29635200, while the sum is 58.

The spelling of 67651464775 in words is "sixty-seven billion, six hundred fifty-one million, four hundred sixty-four thousand, seven hundred seventy-five".