1827919156 has 12 divisors (see below), whose sum is σ = 3655838368. Its totient is φ = 783393912.

The previous prime is 1827919153. The next prime is 1827919157. The reversal of 1827919156 is 6519197281.

1827919156 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1827919153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32641386 + ... + 32641441.

Almost surely, 2^1827919156 is an apocalyptic number.

It is an amenable number.

1827919156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1827919156 is a wasteful number, since it uses less digits than its factorization.

1827919156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65282838 (or 65282836 counting only the distinct ones).

The product of its digits is 272160, while the sum is 49.

The square root of 1827919156 is about 42754.1712117075. The cubic root of 1827919156 is about 1222.6974169133.

The spelling of 1827919156 in words is "one billion, eight hundred twenty-seven million, nine hundred nineteen thousand, one hundred fifty-six".