1067256407778 has 32 divisors (see below), whose sum is σ = 2358034882560. Its totient is φ = 319317220560.

The previous prime is 1067256407719. The next prime is 1067256407803. The reversal of 1067256407778 is 8777046527601.

It is a super-2 number, since 2×1067256407778² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102340050 + ... + 102350477.

It is an arithmetic number, because the mean of its divisors is an integer number (73688590080).

Almost surely, 2^{1067256407778} is an apocalyptic number.

1067256407778 is an abundant number, since it is smaller than the sum of its proper divisors (1290778474782).

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

1067256407778 is a wasteful number, since it uses less digits than its factorization.

1067256407778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204690622.

The product of its (nonzero) digits is 27659520, while the sum is 60.

The spelling of 1067256407778 in words is "one trillion, sixty-seven billion, two hundred fifty-six million, four hundred seven thousand, seven hundred seventy-eight".