67977496751 has 8 divisors (see below), whose sum is σ = 70952792064. Its totient is φ = 65003847480.

The previous prime is 67977496723. The next prime is 67977496771. The reversal of 67977496751 is 15769477976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67977496751 - 2¹⁸ = 67977234607 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 (67977496771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326735 + ... + 492656.

It is an arithmetic number, because the mean of its divisors is an integer number (8869099008).

Almost surely, 2^67977496751 is an apocalyptic number.

67977496751 is a deficient number, since it is larger than the sum of its proper divisors (2975295313).

67977496751 is a wasteful number, since it uses less digits than its factorization.

67977496751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823021.

The product of its digits is 140026320, while the sum is 68.

The spelling of 67977496751 in words is "sixty-seven billion, nine hundred seventy-seven million, four hundred ninety-six thousand, seven hundred fifty-one".