70618147440 has 160 divisors (see below), whose sum is σ = 224423136000. Its totient is φ = 18358487040.

The previous prime is 70618147421. The next prime is 70618147447. The reversal of 70618147440 is 4474181607.

It is a plaindrome in base 9.

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 70618147392 and 70618147401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70618147447) 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, 26163211 + ... + 26165909.

It is an arithmetic number, because the mean of its divisors is an integer number (1402644600).

Almost surely, 2^70618147440 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 70618147440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112211568000).

70618147440 is an abundant number, since it is smaller than the sum of its proper divisors (153804988560).

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

70618147440 is a wasteful number, since it uses less digits than its factorization.

70618147440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5415 (or 5409 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 70618147440 in words is "seventy billion, six hundred eighteen million, one hundred forty-seven thousand, four hundred forty".