709921343430 has 384 divisors, whose sum is σ = 2100982141440. Its totient is φ = 171421608960.

The previous prime is 709921343423. The next prime is 709921343447. The reversal of 709921343430 is 34343129907.

709921343430 is a `hidden beast` number, since 7 + 0 + 99 + 213 + 4 + 343 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 486580041 + ... + 486581499.

It is an arithmetic number, because the mean of its divisors is an integer number (5471307660).

Almost surely, 2^709921343430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 709921343430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050491070720).

709921343430 is an abundant number, since it is smaller than the sum of its proper divisors (1391060798010).

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

709921343430 is a wasteful number, since it uses less digits than its factorization.

709921343430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778 (or 1766 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 709921343430 in words is "seven hundred nine billion, nine hundred twenty-one million, three hundred forty-three thousand, four hundred thirty".