706557349040 has 80 divisors (see below), whose sum is σ = 1652561416800. Its totient is φ = 280935469056.

The previous prime is 706557349031. The next prime is 706557349067. The reversal of 706557349040 is 40943755607.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 706557349040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44226494 + ... + 44242466.

It is an arithmetic number, because the mean of its divisors is an integer number (20657017710).

Almost surely, 2^706557349040 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 706557349040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (826280708400).

706557349040 is an abundant number, since it is smaller than the sum of its proper divisors (946004067760).

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

706557349040 is a wasteful number, since it uses less digits than its factorization.

706557349040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19254 (or 19248 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 706557349040 in words is "seven hundred six billion, five hundred fifty-seven million, three hundred forty-nine thousand, forty".