4349402728645 has 8 divisors (see below), whose sum is σ = 5620766603256. Its totient is φ = 3211866630336.

The previous prime is 4349402728609. The next prime is 4349402728651. The reversal of 4349402728645 is 5468272049434.

It can be written as a sum of positive squares in 4 ways, for example, as 291140101476 + 4058262627169 = 539574^2 + 2014513^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-4349402728645 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4349402728645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33456944002 + ... + 33456944131.

It is an arithmetic number, because the mean of its divisors is an integer number (702595825407).

Almost surely, 2^{4349402728645} is an apocalyptic number.

It is an amenable number.

4349402728645 is a deficient number, since it is larger than the sum of its proper divisors (1271363874611).

4349402728645 is a wasteful number, since it uses less digits than its factorization.

4349402728645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66913888151.

The product of its (nonzero) digits is 46448640, while the sum is 58.

The spelling of 4349402728645 in words is "four trillion, three hundred forty-nine billion, four hundred two million, seven hundred twenty-eight thousand, six hundred forty-five".