70006454820 has 240 divisors, whose sum is σ = 225426136320. Its totient is φ = 18180619776.

The previous prime is 70006454803. The next prime is 70006454821. The reversal of 70006454820 is 2845460007.

70006454820 is a `hidden beast` number, since 7 + 0 + 0 + 0 + 645 + 4 + 8 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (70006454821) 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, 9656437 + ... + 9663683.

It is an arithmetic number, because the mean of its divisors is an integer number (939275568).

Almost surely, 2^70006454820 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 70006454820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112713068160).

70006454820 is an abundant number, since it is smaller than the sum of its proper divisors (155419681500).

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

70006454820 is a wasteful number, since it uses less digits than its factorization.

70006454820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7424 (or 7413 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 70006454820 in words is "seventy billion, six million, four hundred fifty-four thousand, eight hundred twenty".