70209686250 has 240 divisors, whose sum is σ = 215061983136. Its totient is φ = 17019720000.

The previous prime is 70209686237. The next prime is 70209686251. The reversal of 70209686250 is 5268690207.

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

It is a junction number, because it is equal to n+sod(n) for n = 70209686196 and 70209686205.

It is not an unprimeable number, because it can be changed into a prime (70209686251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3330744 + ... + 3351756.

Almost surely, 2^70209686250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70209686250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107530991568).

70209686250 is an abundant number, since it is smaller than the sum of its proper divisors (144852296886).

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

70209686250 is a wasteful number, since it uses less digits than its factorization.

70209686250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21061 (or 21034 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 70209686250 in words is "seventy billion, two hundred nine million, six hundred eighty-six thousand, two hundred fifty".