19500200345 has 8 divisors (see below), whose sum is σ = 23403624840. Its totient is φ = 15597904000.

The previous prime is 19500200309. The next prime is 19500200381. The reversal of 19500200345 is 54300200591.

It is an interprime number because it is at equal distance from previous prime (19500200309) and next prime (19500200381).

It can be written as a sum of positive squares in 4 ways, for example, as 32137561 + 19468062784 = 5669^2 + 139528^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19500200345 - 2¹⁸ = 19499938201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243530 + ... + 313539.

It is an arithmetic number, because the mean of its divisors is an integer number (2925453105).

Almost surely, 2^19500200345 is an apocalyptic number.

It is an amenable number.

19500200345 is a deficient number, since it is larger than the sum of its proper divisors (3903424495).

19500200345 is an equidigital number, since it uses as much as digits as its factorization.

19500200345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564075.

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 19500200345 in words is "nineteen billion, five hundred million, two hundred thousand, three hundred forty-five".