1277760468 has 24 divisors (see below), whose sum is σ = 2986536672. Its totient is φ = 425192224.

The previous prime is 1277760461. The next prime is 1277760499. The reversal of 1277760468 is 8640677721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1277760461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83655 + ... + 97742.

It is an arithmetic number, because the mean of its divisors is an integer number (124439028).

Almost surely, 2^1277760468 is an apocalyptic number.

It is an amenable number.

1277760468 is an abundant number, since it is smaller than the sum of its proper divisors (1708776204).

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

1277760468 is a wasteful number, since it uses less digits than its factorization.

1277760468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181991 (or 181989 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 48.

The square root of 1277760468 is about 35745.7755266269. The cubic root of 1277760468 is about 1085.1334451879.

The spelling of 1277760468 in words is "one billion, two hundred seventy-seven million, seven hundred sixty thousand, four hundred sixty-eight".