72430351557412 has 6 divisors (see below), whose sum is σ = 126753115225478. Its totient is φ = 36215175778704.

The previous prime is 72430351557367. The next prime is 72430351557449. The reversal of 72430351557412 is 21475515303427.

It can be written as a sum of positive squares in only one way, i.e., 49877578508836 + 22552773048576 = 7062406^2 + 4748976^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9053793944673 + ... + 9053793944680.

Almost surely, 2^{72430351557412} is an apocalyptic number.

It is an amenable number.

72430351557412 is a deficient number, since it is larger than the sum of its proper divisors (54322763668066).

72430351557412 is a wasteful number, since it uses less digits than its factorization.

72430351557412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18107587889357 (or 18107587889355 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 49.

The spelling of 72430351557412 in words is "seventy-two trillion, four hundred thirty billion, three hundred fifty-one million, five hundred fifty-seven thousand, four hundred twelve".