19875642363 has 24 divisors (see below), whose sum is σ = 29404325808. Its totient is φ = 12930204672.

The previous prime is 19875642337. The next prime is 19875642389. The reversal of 19875642363 is 36324657891.

19875642363 is a `hidden beast` number, since 1 + 98 + 75 + 6 + 423 + 63 = 666.

It is an interprime number because it is at equal distance from previous prime (19875642337) and next prime (19875642389).

It is not a de Polignac number, because 19875642363 - 2⁵ = 19875642331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19875642323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 401131 + ... + 447947.

It is an arithmetic number, because the mean of its divisors is an integer number (1225180242).

Almost surely, 2^19875642363 is an apocalyptic number.

19875642363 is a deficient number, since it is larger than the sum of its proper divisors (9528683445).

19875642363 is a wasteful number, since it uses less digits than its factorization.

19875642363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47963 (or 47960 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 19875642363 in words is "nineteen billion, eight hundred seventy-five million, six hundred forty-two thousand, three hundred sixty-three".