1386388837061 has 4 divisors (see below), whose sum is σ = 1467941121612. Its totient is φ = 1304836552512.

The previous prime is 1386388837003. The next prime is 1386388837103. The reversal of 1386388837061 is 1607388836831.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1269283890625 + 117104946436 = 1126625^2 + 342206^2 .

It is a cyclic number.

It is not a de Polignac number, because 1386388837061 - 2²² = 1386384642757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1386388836985 and 1386388837003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386388839061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40776142250 + ... + 40776142283.

It is an arithmetic number, because the mean of its divisors is an integer number (366985280403).

Almost surely, 2^{1386388837061} is an apocalyptic number.

It is an amenable number.

1386388837061 is a deficient number, since it is larger than the sum of its proper divisors (81552284551).

1386388837061 is an equidigital number, since it uses as much as digits as its factorization.

1386388837061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81552284550.

The product of its (nonzero) digits is 27869184, while the sum is 62.

The spelling of 1386388837061 in words is "one trillion, three hundred eighty-six billion, three hundred eighty-eight million, eight hundred thirty-seven thousand, sixty-one".