70101243640 has 128 divisors (see below), whose sum is σ = 166895308800. Its totient is φ = 26458306560.

The previous prime is 70101243637. The next prime is 70101243649. The reversal of 70101243640 is 4634210107.

It is a super-4 number, since 4×70101243640⁴ (a number of 44 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70101243599 and 70101243608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70101243649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53799229 + ... + 53800531.

It is an arithmetic number, because the mean of its divisors is an integer number (1303869600).

Almost surely, 2^70101243640 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 70101243640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83447654400).

70101243640 is an abundant number, since it is smaller than the sum of its proper divisors (96794065160).

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

70101243640 is a wasteful number, since it uses less digits than its factorization.

70101243640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397 (or 2393 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 70101243640 its reverse (4634210107), we get a palindrome (74735453747).

The spelling of 70101243640 in words is "seventy billion, one hundred one million, two hundred forty-three thousand, six hundred forty".