1376383432646 has 4 divisors (see below), whose sum is σ = 2064575148972. Its totient is φ = 688191716322.

The previous prime is 1376383432607. The next prime is 1376383432649. The reversal of 1376383432646 is 6462343836731.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1376383432646² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1376383432591 and 1376383432600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1376383432649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344095858160 + ... + 344095858163.

It is an arithmetic number, because the mean of its divisors is an integer number (516143787243).

Almost surely, 2^{1376383432646} is an apocalyptic number.

1376383432646 is a deficient number, since it is larger than the sum of its proper divisors (688191716326).

1376383432646 is an equidigital number, since it uses as much as digits as its factorization.

1376383432646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688191716325.

The product of its digits is 31352832, while the sum is 56.

The spelling of 1376383432646 in words is "one trillion, three hundred seventy-six billion, three hundred eighty-three million, four hundred thirty-two thousand, six hundred forty-six".