394605918134 has 4 divisors (see below), whose sum is σ = 591908877204. Its totient is φ = 197302959066.

The previous prime is 394605918107. The next prime is 394605918137. The reversal of 394605918134 is 431819506493.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×394605918134² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394605918137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98651479532 + ... + 98651479535.

It is an arithmetic number, because the mean of its divisors is an integer number (147977219301).

Almost surely, 2^394605918134 is an apocalyptic number.

394605918134 is a deficient number, since it is larger than the sum of its proper divisors (197302959070).

394605918134 is a wasteful number, since it uses less digits than its factorization.

394605918134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197302959069.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 394605918134 in words is "three hundred ninety-four billion, six hundred five million, nine hundred eighteen thousand, one hundred thirty-four".