70808731840 has 1344 divisors, whose sum is σ = 252181278720. Its totient is φ = 18579456000.

The previous prime is 70808731817. The next prime is 70808731841. The reversal of 70808731840 is 4813780807.

It is not an unprimeable number, because it can be changed into a prime (70808731841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1727042220 + ... + 1727042260.

It is an arithmetic number, because the mean of its divisors is an integer number (187634880).

Almost surely, 2^70808731840 is an apocalyptic number.

70808731840 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70808731840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126090639360).

70808731840 is an abundant number, since it is smaller than the sum of its proper divisors (181372546880).

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

70808731840 is a wasteful number, since it uses less digits than its factorization.

70808731840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The spelling of 70808731840 in words is "seventy billion, eight hundred eight million, seven hundred thirty-one thousand, eight hundred forty".