706507213457 has 4 divisors (see below), whose sum is σ = 707050264116. Its totient is φ = 705964162800.

The previous prime is 706507213427. The next prime is 706507213519. The reversal of 706507213457 is 754312705607.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 754312705607 = 7039 ⋅107161913.

It can be written as a sum of positive squares in 2 ways, for example, as 85474954321 + 621032259136 = 292361^2 + 788056^2 .

It is a cyclic number.

It is not a de Polignac number, because 706507213457 - 2¹⁸ = 706506951313 is a prime.

It is a super-3 number, since 3×706507213457³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706507213427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271523378 + ... + 271525979.

It is an arithmetic number, because the mean of its divisors is an integer number (176762566029).

Almost surely, 2^706507213457 is an apocalyptic number.

It is an amenable number.

706507213457 is a deficient number, since it is larger than the sum of its proper divisors (543050659).

706507213457 is a wasteful number, since it uses less digits than its factorization.

706507213457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543050658.

The product of its (nonzero) digits is 1234800, while the sum is 47.

The spelling of 706507213457 in words is "seven hundred six billion, five hundred seven million, two hundred thirteen thousand, four hundred fifty-seven".