80390266740 has 288 divisors, whose sum is σ = 296593000704. Its totient is φ = 17205350400.

The previous prime is 80390266721. The next prime is 80390266771. The reversal of 80390266740 is 4766209308.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4210215 + ... + 4229265.

It is an arithmetic number, because the mean of its divisors is an integer number (1029836808).

Almost surely, 2^80390266740 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 80390266740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148296500352).

80390266740 is an abundant number, since it is smaller than the sum of its proper divisors (216202733964).

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

80390266740 is a wasteful number, since it uses less digits than its factorization.

80390266740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19287 (or 19282 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 80390266740 in words is "eighty billion, three hundred ninety million, two hundred sixty-six thousand, seven hundred forty".