80525457012 has 384 divisors, whose sum is σ = 271239413760. Its totient is φ = 17899107840.

The previous prime is 80525456969. The next prime is 80525457073. The reversal of 80525457012 is 21075452508.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10722963 + ... + 10730469.

It is an arithmetic number, because the mean of its divisors is an integer number (706352640).

Almost surely, 2^80525457012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80525457012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135619706880).

80525457012 is an abundant number, since it is smaller than the sum of its proper divisors (190713956748).

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

80525457012 is a wasteful number, since it uses less digits than its factorization.

80525457012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7611 (or 7609 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 39.

The spelling of 80525457012 in words is "eighty billion, five hundred twenty-five million, four hundred fifty-seven thousand, twelve".