67779297776 has 20 divisors (see below), whose sum is σ = 131357422944. Its totient is φ = 33880608000.

The previous prime is 67779297749. The next prime is 67779297779.

67779297776 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67779297779) 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, 503000 + ... + 623351.

Almost surely, 2^67779297776 is an apocalyptic number.

It is an amenable number.

67779297776 is a deficient number, since it is larger than the sum of its proper divisors (63578125168).

67779297776 is a wasteful number, since it uses less digits than its factorization.

67779297776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130120 (or 1130114 counting only the distinct ones).

The product of its digits is 686128968, while the sum is 74.

The spelling of 67779297776 in words is "sixty-seven billion, seven hundred seventy-nine million, two hundred ninety-seven thousand, seven hundred seventy-six".