709973794656 has 480 divisors, whose sum is σ = 2573212561920. Its totient is φ = 187482470400.

The previous prime is 709973794633. The next prime is 709973794657. The reversal of 709973794656 is 656497379907.

709973794656 is a `hidden beast` number, since 7 + 0 + 9 + 97 + 3 + 79 + 465 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709973794657) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14109061 + ... + 14159291.

It is an arithmetic number, because the mean of its divisors is an integer number (5360859504).

Almost surely, 2^709973794656 is an apocalyptic number.

709973794656 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 709973794656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1286606280960).

709973794656 is an abundant number, since it is smaller than the sum of its proper divisors (1863238767264).

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

709973794656 is a wasteful number, since it uses less digits than its factorization.

709973794656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50320 (or 50303 counting only the distinct ones).

The product of its (nonzero) digits is 540101520, while the sum is 72.

The spelling of 709973794656 in words is "seven hundred nine billion, nine hundred seventy-three million, seven hundred ninety-four thousand, six hundred fifty-six".