1277918054 has 16 divisors (see below), whose sum is σ = 2212409376. Its totient is φ = 542256000.

The previous prime is 1277918051. The next prime is 1277918107. The reversal of 1277918054 is 4508197721.

It is a junction number, because it is equal to n+sod(n) for n = 1277917996 and 1277918014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1277918051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450467 + ... + 453294.

It is an arithmetic number, because the mean of its divisors is an integer number (138275586).

Almost surely, 2^1277918054 is an apocalyptic number.

1277918054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1277918054 is a deficient number, since it is larger than the sum of its proper divisors (934491322).

1277918054 is a wasteful number, since it uses less digits than its factorization.

1277918054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903871.

The product of its (nonzero) digits is 141120, while the sum is 44.

The square root of 1277918054 is about 35747.9797191394. The cubic root of 1277918054 is about 1085.1780531338.

The spelling of 1277918054 in words is "one billion, two hundred seventy-seven million, nine hundred eighteen thousand, fifty-four".