1686407764152 has 32 divisors (see below), whose sum is σ = 4216054035600. Its totient is φ = 562131304704.

The previous prime is 1686407764099. The next prime is 1686407764157. The reversal of 1686407764152 is 2514677046861.

It is a super-2 number, since 2×1686407764152² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1686407764092 and 1686407764101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1686407764157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3988398 + ... + 4390914.

Almost surely, 2^{1686407764152} is an apocalyptic number.

1686407764152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1686407764152 is an abundant number, since it is smaller than the sum of its proper divisors (2529646271448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1686407764152 is a wasteful number, since it uses less digits than its factorization.

1686407764152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577095 (or 577091 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 1686407764152 in words is "one trillion, six hundred eighty-six billion, four hundred seven million, seven hundred sixty-four thousand, one hundred fifty-two".