72134355943 has 8 divisors (see below), whose sum is σ = 78159738608. Its totient is φ = 66177057024.

The previous prime is 72134355941. The next prime is 72134355961. The reversal of 72134355943 is 34955343127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72134355943 - 2¹ = 72134355941 is a prime.

It is a super-2 number, since 2×72134355943² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72134355893 and 72134355902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72134355941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17018730 + ... + 17022967.

It is an arithmetic number, because the mean of its divisors is an integer number (9769967326).

Almost surely, 2^72134355943 is an apocalyptic number.

72134355943 is a deficient number, since it is larger than the sum of its proper divisors (6025382665).

72134355943 is a wasteful number, since it uses less digits than its factorization.

72134355943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34041873.

The product of its digits is 1360800, while the sum is 46.

The spelling of 72134355943 in words is "seventy-two billion, one hundred thirty-four million, three hundred fifty-five thousand, nine hundred forty-three".