70820028550 has 96 divisors (see below), whose sum is σ = 141049900800. Its totient is φ = 26396160000.

The previous prime is 70820028523. The next prime is 70820028551. The reversal of 70820028550 is 5582002807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70820028551) 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 47 ways as a sum of consecutive naturals, for example, 18022986 + ... + 18026914.

It is an arithmetic number, because the mean of its divisors is an integer number (1469269800).

Almost surely, 2^70820028550 is an apocalyptic number.

70820028550 is a deficient number, since it is larger than the sum of its proper divisors (70229872250).

70820028550 is a wasteful number, since it uses less digits than its factorization.

70820028550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402 (or 4397 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The spelling of 70820028550 in words is "seventy billion, eight hundred twenty million, twenty-eight thousand, five hundred fifty".