80778059196046 has 4 divisors (see below), whose sum is σ = 121167088794072. Its totient is φ = 40389029598022.

The previous prime is 80778059196001. The next prime is 80778059196047. The reversal of 80778059196046 is 64069195087708.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 20194514799010 + ... + 20194514799013.

It is an arithmetic number, because the mean of its divisors is an integer number (30291772198518).

Almost surely, 2^{80778059196046} is an apocalyptic number.

80778059196046 is a deficient number, since it is larger than the sum of its proper divisors (40389029598026).

80778059196046 is a wasteful number, since it uses less digits than its factorization.

80778059196046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40389029598025.

The product of its (nonzero) digits is 182891520, while the sum is 70.

The spelling of 80778059196046 in words is "eighty trillion, seven hundred seventy-eight billion, fifty-nine million, one hundred ninety-six thousand, forty-six".