72055535739 has 8 divisors (see below), whose sum is σ = 104808052032. Its totient is φ = 43670021640.

The previous prime is 72055535737. The next prime is 72055535831. The reversal of 72055535739 is 93753555027.

It is a happy number.

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

It is not a de Polignac number, because 72055535739 - 2¹ = 72055535737 is a prime.

It is a super-2 number, since 2×72055535739² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72055535691 and 72055535700.

It is not an unprimeable number, because it can be changed into a prime (72055535737) 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, 1091750509 + ... + 1091750574.

It is an arithmetic number, because the mean of its divisors is an integer number (13101006504).

Almost surely, 2^72055535739 is an apocalyptic number.

72055535739 is a deficient number, since it is larger than the sum of its proper divisors (32752516293).

72055535739 is a wasteful number, since it uses less digits than its factorization.

72055535739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183501097.

The product of its (nonzero) digits is 4961250, while the sum is 51.

The spelling of 72055535739 in words is "seventy-two billion, fifty-five million, five hundred thirty-five thousand, seven hundred thirty-nine".