1376428736737 has 4 divisors (see below), whose sum is σ = 1448872354480. Its totient is φ = 1303985118996.

The previous prime is 1376428736731. The next prime is 1376428736819. The reversal of 1376428736737 is 7376378246731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1376428736737 - 2⁷ = 1376428736609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1376428736731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36221808843 + ... + 36221808880.

It is an arithmetic number, because the mean of its divisors is an integer number (362218088620).

Almost surely, 2^{1376428736737} is an apocalyptic number.

It is an amenable number.

1376428736737 is a deficient number, since it is larger than the sum of its proper divisors (72443617743).

1376428736737 is an equidigital number, since it uses as much as digits as its factorization.

1376428736737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72443617742.

The product of its digits is 149361408, while the sum is 64.

The spelling of 1376428736737 in words is "one trillion, three hundred seventy-six billion, four hundred twenty-eight million, seven hundred thirty-six thousand, seven hundred thirty-seven".