1819672152 has 16 divisors (see below), whose sum is σ = 4549180440. Its totient is φ = 606557376.

The previous prime is 1819672139. The next prime is 1819672157. The reversal of 1819672152 is 2512769181.

It is a super-2 number, since 2×1819672152² = 6622413481528622208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1819672157) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 37909813 + ... + 37909860.

Almost surely, 2^1819672152 is an apocalyptic number.

1819672152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1819672152 is an abundant number, since it is smaller than the sum of its proper divisors (2729508288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1819672152 is a wasteful number, since it uses less digits than its factorization.

1819672152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75819682 (or 75819678 counting only the distinct ones).

The product of its digits is 60480, while the sum is 42.

The square root of 1819672152 is about 42657.6154045207. The cubic root of 1819672152 is about 1220.8558341392.

The spelling of 1819672152 in words is "one billion, eight hundred nineteen million, six hundred seventy-two thousand, one hundred fifty-two".