28381078310 has 64 divisors (see below), whose sum is σ = 56271704832. Its totient is φ = 10240598016.

The previous prime is 28381078291. The next prime is 28381078331. The reversal of 28381078310 is 1387018382.

It is a super-2 number, since 2×28381078310² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4475462 + ... + 4481798.

It is an arithmetic number, because the mean of its divisors is an integer number (879245388).

Almost surely, 2^28381078310 is an apocalyptic number.

28381078310 is a deficient number, since it is larger than the sum of its proper divisors (27890626522).

28381078310 is a wasteful number, since it uses less digits than its factorization.

28381078310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7137.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 28381078310 in words is "twenty-eight billion, three hundred eighty-one million, seventy-eight thousand, three hundred ten".