80429745880 has 96 divisors (see below), whose sum is σ = 208356189840. Its totient is φ = 27707800320.

The previous prime is 80429745859. The next prime is 80429745881. The reversal of 80429745880 is 8854792408.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80429745881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94339 + ... + 412018.

Almost surely, 2^80429745880 is an apocalyptic number.

It is an amenable number.

80429745880 is an abundant number, since it is smaller than the sum of its proper divisors (127926443960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80429745880 is a wasteful number, since it uses less digits than its factorization.

80429745880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506417 (or 506394 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 55.

The spelling of 80429745880 in words is "eighty billion, four hundred twenty-nine million, seven hundred forty-five thousand, eight hundred eighty".