72361576453 has 4 divisors (see below), whose sum is σ = 72362363500. Its totient is φ = 72360789408.

The previous prime is 72361576447. The next prime is 72361576489. The reversal of 72361576453 is 35467516327.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35467516327 = 9349 ⋅3793723.

It can be written as a sum of positive squares in 2 ways, for example, as 54738217444 + 17623359009 = 233962^2 + 132753^2 .

It is a cyclic number.

It is not a de Polignac number, because 72361576453 - 2⁹ = 72361575941 is a prime.

It is a super-2 number, since 2×72361576453² (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 = 72361576397 and 72361576406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72361570453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234078 + ... + 446671.

It is an arithmetic number, because the mean of its divisors is an integer number (18090590875).

Almost surely, 2^72361576453 is an apocalyptic number.

It is an amenable number.

72361576453 is a deficient number, since it is larger than the sum of its proper divisors (787047).

72361576453 is a wasteful number, since it uses less digits than its factorization.

72361576453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787046.

The product of its digits is 3175200, while the sum is 49.

The spelling of 72361576453 in words is "seventy-two billion, three hundred sixty-one million, five hundred seventy-six thousand, four hundred fifty-three".