736706081280 has 640 divisors, whose sum is σ = 2694508540416. Its totient is φ = 170105241600.

The previous prime is 736706081249. The next prime is 736706081281. The reversal of 736706081280 is 82180607637.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (736706081281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 714554365 + ... + 714555395.

Almost surely, 2^736706081280 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 736706081280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347254270208).

736706081280 is an abundant number, since it is smaller than the sum of its proper divisors (1957802459136).

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

736706081280 is a wasteful number, since it uses less digits than its factorization.

736706081280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508 (or 1492 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 736706081280 in words is "seven hundred thirty-six billion, seven hundred six million, eighty-one thousand, two hundred eighty".