19530527836 has 12 divisors (see below), whose sum is σ = 34182213912. Its totient is φ = 9764181008.

The previous prime is 19530527827. The next prime is 19530527839. The reversal of 19530527836 is 63872503591.

It is a self number, because there is not a number n which added to its sum of digits gives 19530527836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19530527839) 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, 229450 + ... + 302833.

It is an arithmetic number, because the mean of its divisors is an integer number (2848517826).

Almost surely, 2^19530527836 is an apocalyptic number.

It is an amenable number.

19530527836 is a deficient number, since it is larger than the sum of its proper divisors (14651686076).

19530527836 is a wasteful number, since it uses less digits than its factorization.

19530527836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541460 (or 541458 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 19530527836 in words is "nineteen billion, five hundred thirty million, five hundred twenty-seven thousand, eight hundred thirty-six".