1377192961 has 8 divisors (see below), whose sum is σ = 1397214720. Its totient is φ = 1357202592.

The previous prime is 1377192959. The next prime is 1377192997. The reversal of 1377192961 is 1692917731.

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

It is a cyclic number.

It is not a de Polignac number, because 1377192961 - 2¹ = 1377192959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1377192161) 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, 89136 + ... + 103438.

It is an arithmetic number, because the mean of its divisors is an integer number (174651840).

Almost surely, 2^1377192961 is an apocalyptic number.

It is an amenable number.

1377192961 is a deficient number, since it is larger than the sum of its proper divisors (20021759).

1377192961 is a wasteful number, since it uses less digits than its factorization.

1377192961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15695.

The product of its digits is 142884, while the sum is 46.

The square root of 1377192961 is about 37110.5505348546. The cubic root of 1377192961 is about 1112.5808951149.

The spelling of 1377192961 in words is "one billion, three hundred seventy-seven million, one hundred ninety-two thousand, nine hundred sixty-one".