1277420485 has 8 divisors (see below), whose sum is σ = 1672259616. Its totient is φ = 929033040.

The previous prime is 1277420467. The next prime is 1277420491. The reversal of 1277420485 is 5840247721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1277420485 - 2⁹ = 1277419973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11612859 + ... + 11612968.

It is an arithmetic number, because the mean of its divisors is an integer number (209032452).

Almost surely, 2^1277420485 is an apocalyptic number.

It is an amenable number.

1277420485 is a deficient number, since it is larger than the sum of its proper divisors (394839131).

1277420485 is a wasteful number, since it uses less digits than its factorization.

1277420485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23225843.

The product of its (nonzero) digits is 125440, while the sum is 40.

The square root of 1277420485 is about 35741.0196413029. The cubic root of 1277420485 is about 1085.0371935405.

The spelling of 1277420485 in words is "one billion, two hundred seventy-seven million, four hundred twenty thousand, four hundred eighty-five".