840156528453 has 16 divisors (see below), whose sum is σ = 1224446760000. Its totient is φ = 508185399680.

The previous prime is 840156528443. The next prime is 840156528457. The reversal of 840156528453 is 354825651048.

It is a cyclic number.

It is not a de Polignac number, because 840156528453 - 2⁹ = 840156527941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 840156528396 and 840156528405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840156528457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24992328 + ... + 25025921.

It is an arithmetic number, because the mean of its divisors is an integer number (76527922500).

Almost surely, 2^840156528453 is an apocalyptic number.

It is an amenable number.

840156528453 is a deficient number, since it is larger than the sum of its proper divisors (384290231547).

840156528453 is a wasteful number, since it uses less digits than its factorization.

840156528453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50018772.

The product of its (nonzero) digits is 4608000, while the sum is 51.

The spelling of 840156528453 in words is "eight hundred forty billion, one hundred fifty-six million, five hundred twenty-eight thousand, four hundred fifty-three".