1377660427 has 8 divisors (see below), whose sum is σ = 1618510320. Its totient is φ = 1156078560.

The previous prime is 1377660421. The next prime is 1377660439. The reversal of 1377660427 is 7240667731.

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

It is not a de Polignac number, because 1377660427 - 2³ = 1377660419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1377660421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4816852 + ... + 4817137.

It is an arithmetic number, because the mean of its divisors is an integer number (202313790).

Almost surely, 2^1377660427 is an apocalyptic number.

1377660427 is a deficient number, since it is larger than the sum of its proper divisors (240849893).

1377660427 is a wasteful number, since it uses less digits than its factorization.

1377660427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9634013.

The product of its (nonzero) digits is 296352, while the sum is 43.

The square root of 1377660427 is about 37116.8482902307. The cubic root of 1377660427 is about 1112.7067634381.

The spelling of 1377660427 in words is "one billion, three hundred seventy-seven million, six hundred sixty thousand, four hundred twenty-seven".