1686450652 has 12 divisors (see below), whose sum is σ = 2999670856. Its totient is φ = 829401840.

The previous prime is 1686450637. The next prime is 1686450671. The reversal of 1686450652 is 2560546861.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1686450599 and 1686450608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3455598 + ... + 3456085.

Almost surely, 2^1686450652 is an apocalyptic number.

It is an amenable number.

1686450652 is a deficient number, since it is larger than the sum of its proper divisors (1313220204).

1686450652 is a wasteful number, since it uses less digits than its factorization.

1686450652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6911748 (or 6911746 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 1686450652 is about 41066.4175695908. The cubic root of 1686450652 is about 1190.3039620858.

The spelling of 1686450652 in words is "one billion, six hundred eighty-six million, four hundred fifty thousand, six hundred fifty-two".