772280538026138 has 32 divisors (see below), whose sum is σ = 1271056337929728. Its totient is φ = 350334218649600.

The previous prime is 772280538026111. The next prime is 772280538026143. The reversal of 772280538026138 is 831620835082277.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1425242708 + ... + 1425784463.

It is an arithmetic number, because the mean of its divisors is an integer number (39720510560304).

Almost surely, 2^{772280538026138} is an apocalyptic number.

772280538026138 is a deficient number, since it is larger than the sum of its proper divisors (498775799903590).

772280538026138 is a wasteful number, since it uses less digits than its factorization.

772280538026138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851027478.

The product of its (nonzero) digits is 54190080, while the sum is 62.

The spelling of 772280538026138 in words is "seven hundred seventy-two trillion, two hundred eighty billion, five hundred thirty-eight million, twenty-six thousand, one hundred thirty-eight".