72653430302344 has 8 divisors (see below), whose sum is σ = 136225181816910. Its totient is φ = 36326715151168.

The previous prime is 72653430302303. The next prime is 72653430302347. The reversal of 72653430302344 is 44320303435627.

It can be written as a sum of positive squares in only one way, i.e., 46304078184100 + 26349352118244 = 6804710^2 + 5133162^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 72653430302294 and 72653430302303.

It is not an unprimeable number, because it can be changed into a prime (72653430302347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4540839393889 + ... + 4540839393904.

Almost surely, 2^{72653430302344} is an apocalyptic number.

It is an amenable number.

72653430302344 is a deficient number, since it is larger than the sum of its proper divisors (63571751514566).

72653430302344 is a wasteful number, since it uses less digits than its factorization.

72653430302344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081678787799 (or 9081678787795 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 46.

The spelling of 72653430302344 in words is "seventy-two trillion, six hundred fifty-three billion, four hundred thirty million, three hundred two thousand, three hundred forty-four".