729047225755 has 4 divisors (see below), whose sum is σ = 874856670912. Its totient is φ = 583237780600.

The previous prime is 729047225713. The next prime is 729047225791. The reversal of 729047225755 is 557522740927.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 557522740927 = 265333 ⋅2101219.

It is not a de Polignac number, because 729047225755 - 2¹⁷ = 729047094683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 729047225696 and 729047225705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72904722571 + ... + 72904722580.

It is an arithmetic number, because the mean of its divisors is an integer number (218714167728).

Almost surely, 2^729047225755 is an apocalyptic number.

729047225755 is a deficient number, since it is larger than the sum of its proper divisors (145809445157).

729047225755 is a wasteful number, since it uses less digits than its factorization.

729047225755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145809445156.

The product of its (nonzero) digits is 12348000, while the sum is 55.

The spelling of 729047225755 in words is "seven hundred twenty-nine billion, forty-seven million, two hundred twenty-five thousand, seven hundred fifty-five".