1049905851 has 8 divisors (see below), whose sum is σ = 1404105024. Its totient is φ = 697821960.

The previous prime is 1049905847. The next prime is 1049905867. The reversal of 1049905851 is 1585099401.

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

It is not a de Polignac number, because 1049905851 - 2² = 1049905847 is a prime.

It is a super-2 number, since 2×1049905851² = 2204604591928068402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1049905811) 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 7 ways as a sum of consecutive naturals, for example, 527661 + ... + 529646.

It is an arithmetic number, because the mean of its divisors is an integer number (175513128).

Almost surely, 2^1049905851 is an apocalyptic number.

1049905851 is a deficient number, since it is larger than the sum of its proper divisors (354199173).

1049905851 is a wasteful number, since it uses less digits than its factorization.

1049905851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057641.

The product of its (nonzero) digits is 64800, while the sum is 42.

The square root of 1049905851 is about 32402.2507088628. The cubic root of 1049905851 is about 1016.3659772717.

The spelling of 1049905851 in words is "one billion, forty-nine million, nine hundred five thousand, eight hundred fifty-one".