72758134485 has 12 divisors (see below), whose sum is σ = 126114099852. Its totient is φ = 38804338368.

The previous prime is 72758134457. The next prime is 72758134577. The reversal of 72758134485 is 58443185727.

72758134485 is a `hidden beast` number, since 7 + 27 + 5 + 8 + 134 + 485 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 50833113444 + 21925021041 = 225462^2 + 148071^2 .

It is not a de Polignac number, because 72758134485 - 2⁷ = 72758134357 is a prime.

It is a super-2 number, since 2×72758134485² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 808423672 + ... + 808423761.

It is an arithmetic number, because the mean of its divisors is an integer number (10509508321).

Almost surely, 2^72758134485 is an apocalyptic number.

It is an amenable number.

72758134485 is a deficient number, since it is larger than the sum of its proper divisors (53355965367).

72758134485 is a wasteful number, since it uses less digits than its factorization.

72758134485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616847444 (or 1616847441 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 54.

The spelling of 72758134485 in words is "seventy-two billion, seven hundred fifty-eight million, one hundred thirty-four thousand, four hundred eighty-five".