1377791672346 has 32 divisors (see below), whose sum is σ = 3062129287680. Its totient is φ = 459208388448.

The previous prime is 1377791672333. The next prime is 1377791672353. The reversal of 1377791672346 is 6432761977731.

1377791672346 is a `hidden beast` number, since 1 + 377 + 79 + 167 + 2 + 34 + 6 = 666.

It is a super-2 number, since 2×1377791672346² (a number of 25 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1089546 + ... + 1985621.

It is an arithmetic number, because the mean of its divisors is an integer number (95691540240).

Almost surely, 2^{1377791672346} is an apocalyptic number.

1377791672346 is an abundant number, since it is smaller than the sum of its proper divisors (1684337615334).

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

1377791672346 is a wasteful number, since it uses less digits than its factorization.

1377791672346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083475 (or 3083469 counting only the distinct ones).

The product of its digits is 56010528, while the sum is 63.

The spelling of 1377791672346 in words is "one trillion, three hundred seventy-seven billion, seven hundred ninety-one million, six hundred seventy-two thousand, three hundred forty-six".