67778126504 has 64 divisors (see below), whose sum is σ = 150966072000. Its totient is φ = 28180293120.

The previous prime is 67778126503. The next prime is 67778126513. The reversal of 67778126504 is 40562187776.

It is a happy number.

67778126504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (67778126503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650429 + ... + 747404.

It is an arithmetic number, because the mean of its divisors is an integer number (2358844875).

Almost surely, 2^67778126504 is an apocalyptic number.

It is an amenable number.

67778126504 is an abundant number, since it is smaller than the sum of its proper divisors (83187945496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67778126504 is a wasteful number, since it uses less digits than its factorization.

67778126504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397898 (or 1397894 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 53.

The spelling of 67778126504 in words is "sixty-seven billion, seven hundred seventy-eight million, one hundred twenty-six thousand, five hundred four".