80778059196045 has 128 divisors (see below), whose sum is σ = 135535911897600. Its totient is φ = 41029993525248.

The previous prime is 80778059196001. The next prime is 80778059196047. The reversal of 80778059196045 is 54069195087708.

It is not a de Polignac number, because 80778059196045 - 2¹³ = 80778059187853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80778059196047) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8376854994 + ... + 8376864636.

It is an arithmetic number, because the mean of its divisors is an integer number (1058874311700).

Almost surely, 2^{80778059196045} is an apocalyptic number.

It is an amenable number.

80778059196045 is a deficient number, since it is larger than the sum of its proper divisors (54757852701555).

80778059196045 is a wasteful number, since it uses less digits than its factorization.

80778059196045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10719.

The product of its (nonzero) digits is 152409600, while the sum is 69.

The spelling of 80778059196045 in words is "eighty trillion, seven hundred seventy-eight billion, fifty-nine million, one hundred ninety-six thousand, forty-five".