70212487872 has 112 divisors (see below), whose sum is σ = 194195151360. Its totient is φ = 22346446848.

The previous prime is 70212487871. The next prime is 70212487883. The reversal of 70212487872 is 27878421207.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (70212487871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2498733 + ... + 2526675.

It is an arithmetic number, because the mean of its divisors is an integer number (1733885280).

Almost surely, 2^70212487872 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 70212487872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97097575680).

70212487872 is an abundant number, since it is smaller than the sum of its proper divisors (123982663488).

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

70212487872 is a wasteful number, since it uses less digits than its factorization.

70212487872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28550 (or 28540 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 48.

The spelling of 70212487872 in words is "seventy billion, two hundred twelve million, four hundred eighty-seven thousand, eight hundred seventy-two".