1681049002 has 8 divisors (see below), whose sum is σ = 2526752736. Its totient is φ = 838798092.

The previous prime is 1681048991. The next prime is 1681049017. The reversal of 1681049002 is 2009401861.

It is a happy number.

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

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, 861988 + ... + 863935.

It is an arithmetic number, because the mean of its divisors is an integer number (315844092).

Almost surely, 2^1681049002 is an apocalyptic number.

1681049002 is a deficient number, since it is larger than the sum of its proper divisors (845703734).

1681049002 is a wasteful number, since it uses less digits than its factorization.

1681049002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726412.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1681049002 is about 41000.5975810109. The cubic root of 1681049002 is about 1189.0317670885.

The spelling of 1681049002 in words is "one billion, six hundred eighty-one million, forty-nine thousand, two".