70543908450 has 336 divisors, whose sum is σ = 204924384000. Its totient is φ = 18039542400.

The previous prime is 70543908437. The next prime is 70543908451. The reversal of 70543908450 is 5480934507.

70543908450 is a `hidden beast` number, since 70 + 5 + 43 + 90 + 8 + 450 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70543908396 and 70543908405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70543908451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 168362341 + ... + 168362759.

It is an arithmetic number, because the mean of its divisors is an integer number (609894000).

Almost surely, 2^70543908450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70543908450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102462192000).

70543908450 is an abundant number, since it is smaller than the sum of its proper divisors (134380475550).

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

70543908450 is a wasteful number, since it uses less digits than its factorization.

70543908450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 70543908450 in words is "seventy billion, five hundred forty-three million, nine hundred eight thousand, four hundred fifty".