394314139451 has 4 divisors (see below), whose sum is σ = 394505277792. Its totient is φ = 394123001112.

The previous prime is 394314139433. The next prime is 394314139493. The reversal of 394314139451 is 154931413493.

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

It is a cyclic number.

It is not a de Polignac number, because 394314139451 - 2³⁴ = 377134270267 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 394314139396 and 394314139405.

It is not an unprimeable number, because it can be changed into a prime (394314139651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95566076 + ... + 95570201.

It is an arithmetic number, because the mean of its divisors is an integer number (98626319448).

Almost surely, 2^394314139451 is an apocalyptic number.

394314139451 is a deficient number, since it is larger than the sum of its proper divisors (191138341).

394314139451 is a wasteful number, since it uses less digits than its factorization.

394314139451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191138340.

The product of its digits is 699840, while the sum is 47.

The spelling of 394314139451 in words is "three hundred ninety-four billion, three hundred fourteen million, one hundred thirty-nine thousand, four hundred fifty-one".