1815852950 has 12 divisors (see below), whose sum is σ = 3377486580. Its totient is φ = 726341160.

The previous prime is 1815852949. The next prime is 1815852979. The reversal of 1815852950 is 592585181.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18158480 + ... + 18158579.

It is an arithmetic number, because the mean of its divisors is an integer number (281457215).

Almost surely, 2^1815852950 is an apocalyptic number.

1815852950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1815852950 is a deficient number, since it is larger than the sum of its proper divisors (1561633630).

1815852950 is a wasteful number, since it uses less digits than its factorization.

1815852950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36317071 (or 36317066 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 44.

The square root of 1815852950 is about 42612.8261207820. The cubic root of 1815852950 is about 1220.0011085720.

The spelling of 1815852950 in words is "one billion, eight hundred fifteen million, eight hundred fifty-two thousand, nine hundred fifty".