724130937509 has 16 divisors (see below), whose sum is σ = 836213672448. Its totient is φ = 614208655872.

The previous prime is 724130937479. The next prime is 724130937511. The reversal of 724130937509 is 905739031427.

It is a de Polignac number, because none of the positive numbers 2^k-724130937509 is a prime.

It is a super-2 number, since 2×724130937509² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724130937529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5793179 + ... + 5916855.

It is an arithmetic number, because the mean of its divisors is an integer number (52263354528).

Almost surely, 2^724130937509 is an apocalyptic number.

It is an amenable number.

724130937509 is a deficient number, since it is larger than the sum of its proper divisors (112082734939).

724130937509 is a wasteful number, since it uses less digits than its factorization.

724130937509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132404.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The spelling of 724130937509 in words is "seven hundred twenty-four billion, one hundred thirty million, nine hundred thirty-seven thousand, five hundred nine".