700137804721 has 2 divisors, whose sum is σ = 700137804722. Its totient is φ = 700137804720.

The previous prime is 700137804689. The next prime is 700137804731. The reversal of 700137804721 is 127408731007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 676734924321 + 23402880400 = 822639^2 + 152980^2 .

It is an emirp because it is prime and its reverse (127408731007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 700137804721 - 2⁵ = 700137804689 is a prime.

It is a super-2 number, since 2×700137804721² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (700137804731) 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 as a sum of consecutive naturals, namely, 350068902360 + 350068902361.

It is an arithmetic number, because the mean of its divisors is an integer number (350068902361).

Almost surely, 2^700137804721 is an apocalyptic number.

It is an amenable number.

700137804721 is a deficient number, since it is larger than the sum of its proper divisors (1).

700137804721 is an equidigital number, since it uses as much as digits as its factorization.

700137804721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 40.

The spelling of 700137804721 in words is "seven hundred billion, one hundred thirty-seven million, eight hundred four thousand, seven hundred twenty-one".