4278013213 has 8 divisors (see below), whose sum is σ = 4471157880. Its totient is φ = 4087910400.

The previous prime is 4278013211. The next prime is 4278013231. The reversal of 4278013213 is 3123108724.

It can be written as a sum of positive squares in 4 ways, for example, as 1142237209 + 3135776004 = 33797^2 + 55998^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4278013213 - 2¹ = 4278013211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278013211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757588 + ... + 763213.

It is an arithmetic number, because the mean of its divisors is an integer number (558894735).

Almost surely, 2^4278013213 is an apocalyptic number.

It is an amenable number.

4278013213 is a deficient number, since it is larger than the sum of its proper divisors (193144667).

4278013213 is a wasteful number, since it uses less digits than its factorization.

4278013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520927.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 4278013213 is about 65406.5227098949. The cubic root of 4278013213 is about 1623.3570092648.

The spelling of 4278013213 in words is "four billion, two hundred seventy-eight million, thirteen thousand, two hundred thirteen".