434376226387 has 4 divisors (see below), whose sum is σ = 444970768536. Its totient is φ = 423781684240.

The previous prime is 434376226367. The next prime is 434376226409. The reversal of 434376226387 is 783622673434.

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: 783622673434 = 2 ⋅391811336717.

It is not a de Polignac number, because 434376226387 - 2¹⁹ = 434375702099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434376226307) 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, 5297271013 + ... + 5297271094.

It is an arithmetic number, because the mean of its divisors is an integer number (111242692134).

Almost surely, 2^434376226387 is an apocalyptic number.

434376226387 is a deficient number, since it is larger than the sum of its proper divisors (10594542149).

434376226387 is a wasteful number, since it uses less digits than its factorization.

434376226387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10594542148.

The product of its digits is 24385536, while the sum is 55.

The spelling of 434376226387 in words is "four hundred thirty-four billion, three hundred seventy-six million, two hundred twenty-six thousand, three hundred eighty-seven".