706408021958 has 16 divisors (see below), whose sum is σ = 1090055945664. Its totient is φ = 343165748160.

The previous prime is 706408021951. The next prime is 706408021981. The reversal of 706408021958 is 859120804607.

It is a super-2 number, since 2×706408021958² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706408021951) 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 in 7 ways as a sum of consecutive naturals, for example, 27414053 + ... + 27439808.

It is an arithmetic number, because the mean of its divisors is an integer number (68128496604).

Almost surely, 2^706408021958 is an apocalyptic number.

706408021958 is a deficient number, since it is larger than the sum of its proper divisors (383647923706).

706408021958 is a wasteful number, since it uses less digits than its factorization.

706408021958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54854047.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 706408021958 in words is "seven hundred six billion, four hundred eight million, twenty-one thousand, nine hundred fifty-eight".