70321227732 has 384 divisors, whose sum is σ = 222865735680. Its totient is φ = 18742648320.

The previous prime is 70321227659. The next prime is 70321227733. The reversal of 70321227732 is 23772212307.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70321227733) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 177131358 + ... + 177131754.

It is an arithmetic number, because the mean of its divisors is an integer number (580379520).

Almost surely, 2^70321227732 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 70321227732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111432867840).

70321227732 is an abundant number, since it is smaller than the sum of its proper divisors (152544507948).

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

70321227732 is a wasteful number, since it uses less digits than its factorization.

70321227732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The spelling of 70321227732 in words is "seventy billion, three hundred twenty-one million, two hundred twenty-seven thousand, seven hundred thirty-two".