1274144255978 has 16 divisors (see below), whose sum is σ = 2102194434240. Its totient is φ = 579156478780.

The previous prime is 1274144255977. The next prime is 1274144256013. The reversal of 1274144255978 is 8795524414721.

It is not an unprimeable number, because it can be changed into a prime (1274144255977) 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, 239318198 + ... + 239323521.

It is an arithmetic number, because the mean of its divisors is an integer number (131387152140).

Almost surely, 2^{1274144255978} is an apocalyptic number.

1274144255978 is a deficient number, since it is larger than the sum of its proper divisors (828050178262).

1274144255978 is an equidigital number, since it uses as much as digits as its factorization.

1274144255978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478641754 (or 478641732 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 59.

The spelling of 1274144255978 in words is "one trillion, two hundred seventy-four billion, one hundred forty-four million, two hundred fifty-five thousand, nine hundred seventy-eight".