70858144240 has 120 divisors (see below), whose sum is σ = 186149737440. Its totient is φ = 25025375232.

The previous prime is 70858144187. The next prime is 70858144241. The reversal of 70858144240 is 4244185807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70858144241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197026 + ... + 424894.

It is an arithmetic number, because the mean of its divisors is an integer number (1551247812).

Almost surely, 2^70858144240 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 70858144240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93074868720).

70858144240 is an abundant number, since it is smaller than the sum of its proper divisors (115291593200).

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

70858144240 is a wasteful number, since it uses less digits than its factorization.

70858144240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227931 (or 227912 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 43.

The spelling of 70858144240 in words is "seventy billion, eight hundred fifty-eight million, one hundred forty-four thousand, two hundred forty".