736906994640 has 240 divisors, whose sum is σ = 2492996688000. Its totient is φ = 195067173888.

The previous prime is 736906994617. The next prime is 736906994729. The reversal of 736906994640 is 46499609637.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57034101 + ... + 57047019.

It is an arithmetic number, because the mean of its divisors is an integer number (10387486200).

Almost surely, 2^736906994640 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 736906994640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246498344000).

736906994640 is an abundant number, since it is smaller than the sum of its proper divisors (1756089693360).

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

736906994640 is a wasteful number, since it uses less digits than its factorization.

736906994640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13514 (or 13505 counting only the distinct ones).

The product of its (nonzero) digits is 52907904, while the sum is 63.

The spelling of 736906994640 in words is "seven hundred thirty-six billion, nine hundred six million, nine hundred ninety-four thousand, six hundred forty".