1680496531 has 8 divisors (see below), whose sum is σ = 1927709280. Its totient is φ = 1435069248.

The previous prime is 1680496523. The next prime is 1680496537. The reversal of 1680496531 is 1356940861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1680496531 - 2³ = 1680496523 is a prime.

It is a super-2 number, since 2×1680496531² = 5648137181406067922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1680496537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444346 + ... + 448111.

It is an arithmetic number, because the mean of its divisors is an integer number (240963660).

Almost surely, 2^1680496531 is an apocalyptic number.

1680496531 is a deficient number, since it is larger than the sum of its proper divisors (247212749).

1680496531 is an equidigital number, since it uses as much as digits as its factorization.

1680496531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892733.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1680496531 is about 40993.8596743464. The cubic root of 1680496531 is about 1188.9014957430.

The spelling of 1680496531 in words is "one billion, six hundred eighty million, four hundred ninety-six thousand, five hundred thirty-one".