1681650470 has 8 divisors (see below), whose sum is σ = 3026970864. Its totient is φ = 672660184.

The previous prime is 1681650469. The next prime is 1681650473. The reversal of 1681650470 is 740561861.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681650473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84082514 + ... + 84082533.

It is an arithmetic number, because the mean of its divisors is an integer number (378371358).

Almost surely, 2^1681650470 is an apocalyptic number.

1681650470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1681650470 is a deficient number, since it is larger than the sum of its proper divisors (1345320394).

1681650470 is a wasteful number, since it uses less digits than its factorization.

1681650470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168165054.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 1681650470 is about 41007.9317937396. The cubic root of 1681650470 is about 1189.1735593625.

The spelling of 1681650470 in words is "one billion, six hundred eighty-one million, six hundred fifty thousand, four hundred seventy".