70390187136 has 352 divisors, whose sum is σ = 215019814800. Its totient is φ = 22946913792.

The previous prime is 70390187117. The next prime is 70390187149. The reversal of 70390187136 is 63178109307.

70390187136 is a `hidden beast` number, since 70 + 390 + 187 + 13 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 70390187091 and 70390187100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 43 ways as a sum of consecutive naturals, for example, 506404155 + ... + 506404293.

Almost surely, 2^70390187136 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 70390187136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107509907400).

70390187136 is an abundant number, since it is smaller than the sum of its proper divisors (144629627664).

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

70390187136 is an frugal number, since it uses more digits than its factorization.

70390187136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 70390187136 in words is "seventy billion, three hundred ninety million, one hundred eighty-seven thousand, one hundred thirty-six".