1630672851 has 8 divisors (see below), whose sum is σ = 2182498560. Its totient is φ = 1082981192.

The previous prime is 1630672781. The next prime is 1630672873. The reversal of 1630672851 is 1582760361.

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 1630672851 - 2¹⁹ = 1630148563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1630672651) 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, 1032591 + ... + 1034168.

It is an arithmetic number, because the mean of its divisors is an integer number (272812320).

Almost surely, 2^1630672851 is an apocalyptic number.

1630672851 is a deficient number, since it is larger than the sum of its proper divisors (551825709).

1630672851 is a wasteful number, since it uses less digits than its factorization.

1630672851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067025.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1630672851 is about 40381.5904961655. The cubic root of 1630672851 is about 1177.0338340707.

The spelling of 1630672851 in words is "one billion, six hundred thirty million, six hundred seventy-two thousand, eight hundred fifty-one".