80078724788 has 6 divisors (see below), whose sum is σ = 140137768386. Its totient is φ = 40039362392.

The previous prime is 80078724787. The next prime is 80078724799. The reversal of 80078724788 is 88742787008.

It can be written as a sum of positive squares in only one way, i.e., 65637415204 + 14441309584 = 256198^2 + 120172^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80078724787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10009840595 + ... + 10009840602.

It is an arithmetic number, because the mean of its divisors is an integer number (23356294731).

Almost surely, 2^80078724788 is an apocalyptic number.

It is an amenable number.

80078724788 is a deficient number, since it is larger than the sum of its proper divisors (60059043598).

80078724788 is a wasteful number, since it uses less digits than its factorization.

80078724788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20019681201 (or 20019681199 counting only the distinct ones).

The product of its (nonzero) digits is 11239424, while the sum is 59.

The spelling of 80078724788 in words is "eighty billion, seventy-eight million, seven hundred twenty-four thousand, seven hundred eighty-eight".