80735980912650 has 288 divisors, whose sum is σ = 255461622624000. Its totient is φ = 18271222704000.

The previous prime is 80735980912633. The next prime is 80735980912661. The reversal of 80735980912650 is 5621908953708.

80735980912650 is a `hidden beast` number, since 80 + 7 + 359 + 80 + 9 + 126 + 5 + 0 = 666.

It is a super-2 number, since 2×80735980912650² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 12999891 + ... + 18178809.

It is an arithmetic number, because the mean of its divisors is an integer number (887019523000).

Almost surely, 2^{80735980912650} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80735980912650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127730811312000).

80735980912650 is an abundant number, since it is smaller than the sum of its proper divisors (174725641711350).

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

80735980912650 is a wasteful number, since it uses less digits than its factorization.

80735980912650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5179059 (or 5179037 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 63.

The spelling of 80735980912650 in words is "eighty trillion, seven hundred thirty-five billion, nine hundred eighty million, nine hundred twelve thousand, six hundred fifty".