810746538 has 16 divisors (see below), whose sum is σ = 1853135040. Its totient is φ = 231641856.

The previous prime is 810746513. The next prime is 810746561. The reversal of 810746538 is 835647018.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 19303489 = 810746538 / (8 + 1 + 0 + 7 + 4 + 6 + 5 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 810746538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9651703 + ... + 9651786.

It is an arithmetic number, because the mean of its divisors is an integer number (115820940).

Almost surely, 2^810746538 is an apocalyptic number.

810746538 is an abundant number, since it is smaller than the sum of its proper divisors (1042388502).

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

810746538 is a wasteful number, since it uses less digits than its factorization.

810746538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19303501.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 810746538 is about 28473.6112567409. The cubic root of 810746538 is about 932.4560425100.

It can be divided in two parts, 8107 and 46538, that added together give a palindrome (54645).

The spelling of 810746538 in words is "eight hundred ten million, seven hundred forty-six thousand, five hundred thirty-eight".