720421300706 has 4 divisors (see below), whose sum is σ = 1080631951062. Its totient is φ = 360210650352.

The previous prime is 720421300523. The next prime is 720421300787. The reversal of 720421300706 is 607003124027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607003124027 = 211 ⋅2876792057.

It can be written as a sum of positive squares in only one way, i.e., 713121136225 + 7300164481 = 844465^2 + 85441^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180105325175 + ... + 180105325178.

Almost surely, 2^720421300706 is an apocalyptic number.

720421300706 is a deficient number, since it is larger than the sum of its proper divisors (360210650356).

720421300706 is a wasteful number, since it uses less digits than its factorization.

720421300706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360210650355.

The product of its (nonzero) digits is 14112, while the sum is 32.

The spelling of 720421300706 in words is "seven hundred twenty billion, four hundred twenty-one million, three hundred thousand, seven hundred six".