4354026639 has 4 divisors (see below), whose sum is σ = 5805368856. Its totient is φ = 2902684424.

The previous prime is 4354026637. The next prime is 4354026659. The reversal of 4354026639 is 9366204534.

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 4354026639 - 2¹ = 4354026637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4354026639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4354026631) 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, 725671104 + ... + 725671109.

It is an arithmetic number, because the mean of its divisors is an integer number (1451342214).

Almost surely, 2^4354026639 is an apocalyptic number.

4354026639 is a deficient number, since it is larger than the sum of its proper divisors (1451342217).

4354026639 is a wasteful number, since it uses less digits than its factorization.

4354026639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451342216.

The product of its (nonzero) digits is 466560, while the sum is 42.

The square root of 4354026639 is about 65985.0486019371. The cubic root of 4354026639 is about 1632.9154340790.

The spelling of 4354026639 in words is "four billion, three hundred fifty-four million, twenty-six thousand, six hundred thirty-nine".