70027978384 has 135 divisors (see below), whose sum is σ = 171141072777. Its totient is φ = 27665269632.

The previous prime is 70027978381. The next prime is 70027978417. The reversal of 70027978384 is 48387972007.

70027978384 = 1³ + 2³ + ... + 727³.

The square root of 70027978384 is 264628.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10359168400 + 59668809984 = 101780^2 + 244272^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70027978381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 96324229 + ... + 96324955.

Almost surely, 2^70027978384 is an apocalyptic number.

70027978384 is the 264628-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70027978384

70027978384 is an abundant number, since it is smaller than the sum of its proper divisors (101113094393).

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

70027978384 is an equidigital number, since it uses as much as digits as its factorization.

70027978384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 55.

The spelling of 70027978384 in words is "seventy billion, twenty-seven million, nine hundred seventy-eight thousand, three hundred eighty-four".