726124482621 has 6 divisors (see below), whose sum is σ = 1048846474910. Its totient is φ = 484082988408.

The previous prime is 726124482593. The next prime is 726124482631. The reversal of 726124482621 is 126284421627.

726124482621 is a `hidden beast` number, since 7 + 2 + 6 + 12 + 4 + 4 + 8 + 2 + 621 = 666.

It can be written as a sum of positive squares in only one way, i.e., 665219672100 + 60904810521 = 815610^2 + 246789^2 .

It is not a de Polignac number, because 726124482621 - 2¹⁹ = 726123958333 is a prime.

It is a super-2 number, since 2×726124482621² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726124482631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40340249026 + ... + 40340249043.

Almost surely, 2^726124482621 is an apocalyptic number.

It is an amenable number.

726124482621 is a deficient number, since it is larger than the sum of its proper divisors (322721992289).

726124482621 is a wasteful number, since it uses less digits than its factorization.

726124482621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80680498075 (or 80680498072 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The spelling of 726124482621 in words is "seven hundred twenty-six billion, one hundred twenty-four million, four hundred eighty-two thousand, six hundred twenty-one".