1005472728381 has 8 divisors (see below), whose sum is σ = 1462505786784. Its totient is φ = 609377411120.

The previous prime is 1005472728289. The next prime is 1005472728383. The reversal of 1005472728381 is 1838272745001.

1005472728381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1005472728381 - 2¹¹ = 1005472726333 is a prime.

It is a super-2 number, since 2×1005472728381² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1005472728381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005472728383) 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, 15234435246 + ... + 15234435311.

It is an arithmetic number, because the mean of its divisors is an integer number (182813223348).

Almost surely, 2^{1005472728381} is an apocalyptic number.

1005472728381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1005472728381 is a deficient number, since it is larger than the sum of its proper divisors (457033058403).

1005472728381 is a wasteful number, since it uses less digits than its factorization.

1005472728381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30468870571.

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 1005472728381 in words is "one trillion, five billion, four hundred seventy-two million, seven hundred twenty-eight thousand, three hundred eighty-one".