1686870370037 has 16 divisors (see below), whose sum is σ = 1783949389824. Its totient is φ = 1592466480000.

The previous prime is 1686870369929. The next prime is 1686870370051. The reversal of 1686870370037 is 7300730786861.

It is a cyclic number.

It is not a de Polignac number, because 1686870370037 - 2²² = 1686866175733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1686870370057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12517148 + ... + 12651194.

It is an arithmetic number, because the mean of its divisors is an integer number (111496836864).

Almost surely, 2^{1686870370037} is an apocalyptic number.

It is an amenable number.

1686870370037 is a deficient number, since it is larger than the sum of its proper divisors (97079019787).

1686870370037 is a wasteful number, since it uses less digits than its factorization.

1686870370037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144020.

The product of its (nonzero) digits is 7112448, while the sum is 56.

The spelling of 1686870370037 in words is "one trillion, six hundred eighty-six billion, eight hundred seventy million, three hundred seventy thousand, thirty-seven".