1277717052 has 12 divisors (see below), whose sum is σ = 2981339816. Its totient is φ = 425905680.

The previous prime is 1277717047. The next prime is 1277717081. The reversal of 1277717052 is 2507177721.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×1277717052³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1277717052.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 53238199 + ... + 53238222.

Almost surely, 2^1277717052 is an apocalyptic number.

1277717052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1277717052 is an abundant number, since it is smaller than the sum of its proper divisors (1703622764).

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

1277717052 is a wasteful number, since it uses less digits than its factorization.

1277717052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106476428 (or 106476426 counting only the distinct ones).

The product of its (nonzero) digits is 48020, while the sum is 39.

The square root of 1277717052 is about 35745.1682329235. The cubic root of 1277717052 is about 1085.1211547551.

The spelling of 1277717052 in words is "one billion, two hundred seventy-seven million, seven hundred seventeen thousand, fifty-two".