72747350023251 has 16 divisors (see below), whose sum is σ = 99942481447424. Its totient is φ = 47033765148384.

The previous prime is 72747350023123. The next prime is 72747350023253. The reversal of 72747350023251 is 15232005374727.

It is not a de Polignac number, because 72747350023251 - 2⁷ = 72747350023123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72747350023251.

It is not an unprimeable number, because it can be changed into a prime (72747350023253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1067362555 + ... + 1067430708.

It is an arithmetic number, because the mean of its divisors is an integer number (6246405090464).

Almost surely, 2^{72747350023251} is an apocalyptic number.

72747350023251 is a deficient number, since it is larger than the sum of its proper divisors (27195131424173).

72747350023251 is a wasteful number, since it uses less digits than its factorization.

72747350023251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134793610.

The product of its (nonzero) digits is 2469600, while the sum is 48.

Adding to 72747350023251 its reverse (15232005374727), we get a palindrome (87979355397978).

The spelling of 72747350023251 in words is "seventy-two trillion, seven hundred forty-seven billion, three hundred fifty million, twenty-three thousand, two hundred fifty-one".