72622135407785 has 16 divisors (see below), whose sum is σ = 92302916898816. Its totient is φ = 54662367314688.

The previous prime is 72622135407737. The next prime is 72622135407821. The reversal of 72622135407785 is 58770453122627.

It is a cyclic number.

It is not a de Polignac number, because 72622135407785 - 2³⁰ = 72621061665961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139024937 + ... + 139546326.

It is an arithmetic number, because the mean of its divisors is an integer number (5768932306176).

Almost surely, 2^{72622135407785} is an apocalyptic number.

It is an amenable number.

72622135407785 is a deficient number, since it is larger than the sum of its proper divisors (19680781491031).

72622135407785 is a wasteful number, since it uses less digits than its factorization.

72622135407785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278574352.

The product of its (nonzero) digits is 39513600, while the sum is 59.

The spelling of 72622135407785 in words is "seventy-two trillion, six hundred twenty-two billion, one hundred thirty-five million, four hundred seven thousand, seven hundred eighty-five".