195263402087 has 8 divisors (see below), whose sum is σ = 210310653504. Its totient is φ = 180220006368.

The previous prime is 195263402029. The next prime is 195263402129. The reversal of 195263402087 is 780204362591.

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

It is a cyclic number.

It is not a de Polignac number, because 195263402087 - 2⁶ = 195263402023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195263402017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858308 + ... + 1061705.

It is an arithmetic number, because the mean of its divisors is an integer number (26288831688).

It is a 2-persistent number, because it is pandigital, and so is 2⋅195263402087 = 390526804174, but 3⋅195263402087 = 585790206261 is not.

Almost surely, 2^195263402087 is an apocalyptic number.

195263402087 is a deficient number, since it is larger than the sum of its proper divisors (15047251417).

195263402087 is a wasteful number, since it uses less digits than its factorization.

195263402087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927849.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 195263402087 in words is "one hundred ninety-five billion, two hundred sixty-three million, four hundred two thousand, eighty-seven".