721187117607341 has 16 divisors (see below), whose sum is σ = 918273069342720. Its totient is φ = 550007307152880.

The previous prime is 721187117607301. The next prime is 721187117607377. The reversal of 721187117607341 is 143706711781127.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-721187117607341 is a prime.

It is a super-2 number, since 2×721187117607341² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721187117607301) 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, 99639001301 + ... + 99639008538.

It is an arithmetic number, because the mean of its divisors is an integer number (57392066833920).

Almost surely, 2^{721187117607341} is an apocalyptic number.

It is an amenable number.

721187117607341 is a deficient number, since it is larger than the sum of its proper divisors (197085951735379).

721187117607341 is a wasteful number, since it uses less digits than its factorization.

721187117607341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199278009904.

The product of its (nonzero) digits is 2765952, while the sum is 56.

The spelling of 721187117607341 in words is "seven hundred twenty-one trillion, one hundred eighty-seven billion, one hundred seventeen million, six hundred seven thousand, three hundred forty-one".