729400007461 has 4 divisors (see below), whose sum is σ = 729426958624. Its totient is φ = 729373056300.

The previous prime is 729400007419. The next prime is 729400007507. The reversal of 729400007461 is 164700004927.

729400007461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 164700004927 = 163223 ⋅1009049.

It is a cyclic number.

It is not a de Polignac number, because 729400007461 - 2⁷ = 729400007333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729400007261) 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, 13434945 + ... + 13489126.

It is an arithmetic number, because the mean of its divisors is an integer number (182356739656).

Almost surely, 2^729400007461 is an apocalyptic number.

It is an amenable number.

729400007461 is a deficient number, since it is larger than the sum of its proper divisors (26951163).

729400007461 is a wasteful number, since it uses less digits than its factorization.

729400007461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26951162.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 729400007461 in words is "seven hundred twenty-nine billion, four hundred million, seven thousand, four hundred sixty-one".