190387342840463 has 32 divisors (see below), whose sum is σ = 200611341895680. Its totient is φ = 180328638138880.

The previous prime is 190387342840459. The next prime is 190387342840501. The reversal of 190387342840463 is 364048243783091.

It is a Cunningham number, because it is equal to 13798092²-1.

It is a cyclic number.

It is not a de Polignac number, because 190387342840463 - 2² = 190387342840459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190387342840396 and 190387342840405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190387342840403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21676796570 + ... + 21676805352.

It is an arithmetic number, because the mean of its divisors is an integer number (6269104434240).

Almost surely, 2^{190387342840463} is an apocalyptic number.

190387342840463 is a deficient number, since it is larger than the sum of its proper divisors (10223999055217).

190387342840463 is a wasteful number, since it uses less digits than its factorization.

190387342840463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15799.

The product of its (nonzero) digits is 83607552, while the sum is 62.

The spelling of 190387342840463 in words is "one hundred ninety trillion, three hundred eighty-seven billion, three hundred forty-two million, eight hundred forty thousand, four hundred sixty-three".