191025828463 has 8 divisors (see below), whose sum is σ = 206566103232. Its totient is φ = 175963716096.

The previous prime is 191025828431. The next prime is 191025828467. The reversal of 191025828463 is 364828520191.

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 191025828463 - 2⁵ = 191025828431 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 (191025828467) 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, 119539770 + ... + 119541367.

It is an arithmetic number, because the mean of its divisors is an integer number (25820762904).

Almost surely, 2^191025828463 is an apocalyptic number.

191025828463 is a deficient number, since it is larger than the sum of its proper divisors (15540274769).

191025828463 is a wasteful number, since it uses less digits than its factorization.

191025828463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239081201.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 191025828463 in words is "one hundred ninety-one billion, twenty-five million, eight hundred twenty-eight thousand, four hundred sixty-three".