28315036444002 has 32 divisors (see below), whose sum is σ = 70603727238144. Its totient is φ = 7354554920400.

The previous prime is 28315036443983. The next prime is 28315036444007. The reversal of 28315036444002 is 20044463051382.

It is a super-2 number, since 2×28315036444002² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (28315036444007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30643978374 + ... + 30643979297.

It is an arithmetic number, because the mean of its divisors is an integer number (2206366476192).

Almost surely, 2^{28315036444002} is an apocalyptic number.

28315036444002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28315036444002 is an abundant number, since it is smaller than the sum of its proper divisors (42288690794142).

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

28315036444002 is a wasteful number, since it uses less digits than its factorization.

28315036444002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61287957694.

The product of its (nonzero) digits is 552960, while the sum is 42.

Adding to 28315036444002 its reverse (20044463051382), we get a palindrome (48359499495384).

The spelling of 28315036444002 in words is "twenty-eight trillion, three hundred fifteen billion, thirty-six million, four hundred forty-four thousand, two".