1277941054440 has 64 divisors (see below), whose sum is σ = 3833897780160. Its totient is φ = 340777648640.

The previous prime is 1277941054301. The next prime is 1277941054459. The reversal of 1277941054440 is 444501497721.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1277941054440.

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, 11237947 + ... + 11351093.

It is an arithmetic number, because the mean of its divisors is an integer number (59904652815).

Almost surely, 2^{1277941054440} is an apocalyptic number.

1277941054440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1277941054440 is an abundant number, since it is smaller than the sum of its proper divisors (2555956725720).

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

1277941054440 is a wasteful number, since it uses less digits than its factorization.

1277941054440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207282 (or 207278 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 1277941054440 in words is "one trillion, two hundred seventy-seven billion, nine hundred forty-one million, fifty-four thousand, four hundred forty".