394524145102 has 4 divisors (see below), whose sum is σ = 591786217656. Its totient is φ = 197262072550.

The previous prime is 394524145079. The next prime is 394524145139. The reversal of 394524145102 is 201541425493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201541425493 = 19 ⋅10607443447.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98631036274 + ... + 98631036277.

It is an arithmetic number, because the mean of its divisors is an integer number (147946554414).

Almost surely, 2^394524145102 is an apocalyptic number.

394524145102 is a deficient number, since it is larger than the sum of its proper divisors (197262072554).

394524145102 is a wasteful number, since it uses less digits than its factorization.

394524145102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197262072553.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 394524145102 in words is "three hundred ninety-four billion, five hundred twenty-four million, one hundred forty-five thousand, one hundred two".