70549032420 has 36 divisors (see below), whose sum is σ = 213998732220. Its totient is φ = 18813075264.

The previous prime is 70549032397. The next prime is 70549032509. The reversal of 70549032420 is 2423094507.

70549032420 is a `hidden beast` number, since 70 + 54 + 90 + 32 + 420 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27421372836 + 43127659584 = 165594^2 + 207672^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×70549032420² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 195969355 + ... + 195969714.

Almost surely, 2^70549032420 is an apocalyptic number.

It is an amenable number.

70549032420 is an abundant number, since it is smaller than the sum of its proper divisors (143449699800).

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

70549032420 is a wasteful number, since it uses less digits than its factorization.

70549032420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391939084 (or 391939079 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 70549032420 in words is "seventy billion, five hundred forty-nine million, thirty-two thousand, four hundred twenty".