70820814452 has 6 divisors (see below), whose sum is σ = 123936425298. Its totient is φ = 35410407224.

The previous prime is 70820814443. The next prime is 70820814457. The reversal of 70820814452 is 25441802807.

It can be written as a sum of positive squares in only one way, i.e., 62193376996 + 8627437456 = 249386^2 + 92884^2 .

It is a super-2 number, since 2×70820814452² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70820814457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8852601803 + ... + 8852601810.

It is an arithmetic number, because the mean of its divisors is an integer number (20656070883).

Almost surely, 2^70820814452 is an apocalyptic number.

It is an amenable number.

70820814452 is a deficient number, since it is larger than the sum of its proper divisors (53115610846).

70820814452 is a wasteful number, since it uses less digits than its factorization.

70820814452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17705203617 (or 17705203615 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 41.

The spelling of 70820814452 in words is "seventy billion, eight hundred twenty million, eight hundred fourteen thousand, four hundred fifty-two".