8278208742 has 16 divisors (see below), whose sum is σ = 16686784512. Its totient is φ = 2737675080.

The previous prime is 8278208711. The next prime is 8278208749. The reversal of 8278208742 is 2478028728.

It is a super-2 number, since 2×8278208742² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8278208691 and 8278208700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8278208749) 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, 5431134 + ... + 5432657.

It is an arithmetic number, because the mean of its divisors is an integer number (1042924032).

Almost surely, 2^8278208742 is an apocalyptic number.

8278208742 is an abundant number, since it is smaller than the sum of its proper divisors (8408575770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8278208742 is a wasteful number, since it uses less digits than its factorization.

8278208742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10863923.

The product of its (nonzero) digits is 802816, while the sum is 48.

The square root of 8278208742 is about 90984.6621249977. The cubic root of 8278208742 is about 2022.9203863539.

The spelling of 8278208742 in words is "eight billion, two hundred seventy-eight million, two hundred eight thousand, seven hundred forty-two".