1386164616831 has 32 divisors (see below), whose sum is σ = 2112866642880. Its totient is φ = 897519201408.

The previous prime is 1386164616827. The next prime is 1386164616899.

It is a happy number.

1386164616831 is a `hidden beast` number, since 1 + 3 + 8 + 6 + 16 + 4 + 616 + 8 + 3 + 1 = 666.

1386164616831 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1386164616831 - 2² = 1386164616827 is a prime.

It is a super-2 number, since 2×1386164616831² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386164614831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 689116 + ... + 1802001.

It is an arithmetic number, because the mean of its divisors is an integer number (66027082590).

Almost surely, 2^{1386164616831} is an apocalyptic number.

1386164616831 is a deficient number, since it is larger than the sum of its proper divisors (726702026049).

1386164616831 is a wasteful number, since it uses less digits than its factorization.

1386164616831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491720 (or 2491714 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 1386164616831 in words is "one trillion, three hundred eighty-six billion, one hundred sixty-four million, six hundred sixteen thousand, eight hundred thirty-one".