80681350802 has 16 divisors (see below), whose sum is σ = 130450266072. Its totient is φ = 37203588480.

The previous prime is 80681350781. The next prime is 80681350807. The reversal of 80681350802 is 20805318608.

It can be written as a sum of positive squares in 4 ways, for example, as 62870046121 + 17811304681 = 250739^2 + 133459^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80681350802.

It is not an unprimeable number, because it can be changed into a prime (80681350807) 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, 1385849 + ... + 1442892.

Almost surely, 2^80681350802 is an apocalyptic number.

80681350802 is a deficient number, since it is larger than the sum of its proper divisors (49768915270).

80681350802 is a wasteful number, since it uses less digits than its factorization.

80681350802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829853.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 80681350802 in words is "eighty billion, six hundred eighty-one million, three hundred fifty thousand, eight hundred two".