1377864546 has 8 divisors (see below), whose sum is σ = 2755729104. Its totient is φ = 459288180.

The previous prime is 1377864511. The next prime is 1377864577. The reversal of 1377864546 is 6454687731.

It is a happy number.

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

1377864546 is an admirable number.

It is a super-2 number, since 2×1377864546² = 3797021414247572232, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114822040 + ... + 114822051.

It is an arithmetic number, because the mean of its divisors is an integer number (344466138).

Almost surely, 2^1377864546 is an apocalyptic number.

1377864546 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1377864546 is a wasteful number, since it uses less digits than its factorization.

1377864546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229644096.

The product of its digits is 3386880, while the sum is 51.

The square root of 1377864546 is about 37119.5978695891. The cubic root of 1377864546 is about 1112.7617149029.

The spelling of 1377864546 in words is "one billion, three hundred seventy-seven million, eight hundred sixty-four thousand, five hundred forty-six".