81228598703 has 8 divisors (see below), whose sum is σ = 92834525472. Its totient is φ = 69623132256.

The previous prime is 81228598681. The next prime is 81228598729. The reversal of 81228598703 is 30789582218.

It is a happy number.

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 81228598703 - 2¹⁶ = 81228533167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81228598793) 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, 444401 + ... + 599957.

It is an arithmetic number, because the mean of its divisors is an integer number (11604315684).

Almost surely, 2^81228598703 is an apocalyptic number.

81228598703 is a deficient number, since it is larger than the sum of its proper divisors (11605926769).

81228598703 is a wasteful number, since it uses less digits than its factorization.

81228598703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230161.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 81228598703 in words is "eighty-one billion, two hundred twenty-eight million, five hundred ninety-eight thousand, seven hundred three".