10194612518 has 4 divisors (see below), whose sum is σ = 15291918780. Its totient is φ = 5097306258.

The previous prime is 10194612517. The next prime is 10194612569. The reversal of 10194612518 is 81521649101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81521649101 = 143977 ⋅566213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10194612517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2548653128 + ... + 2548653131.

It is an arithmetic number, because the mean of its divisors is an integer number (3822979695).

Almost surely, 2^10194612518 is an apocalyptic number.

10194612518 is a deficient number, since it is larger than the sum of its proper divisors (5097306262).

10194612518 is an equidigital number, since it uses as much as digits as its factorization.

10194612518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5097306261.

The product of its (nonzero) digits is 17280, while the sum is 38.

The spelling of 10194612518 in words is "ten billion, one hundred ninety-four million, six hundred twelve thousand, five hundred eighteen".