764678531055 has 8 divisors (see below), whose sum is σ = 1223485649712. Its totient is φ = 407828549888.

The previous prime is 764678531053. The next prime is 764678531069. The reversal of 764678531055 is 550135876467.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 764678531055 - 2¹ = 764678531053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 764678530986 and 764678531004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764678531053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25489284354 + ... + 25489284383.

It is an arithmetic number, because the mean of its divisors is an integer number (152935706214).

Almost surely, 2^764678531055 is an apocalyptic number.

764678531055 is a deficient number, since it is larger than the sum of its proper divisors (458807118657).

764678531055 is a wasteful number, since it uses less digits than its factorization.

764678531055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50978568745.

The product of its (nonzero) digits is 21168000, while the sum is 57.

The spelling of 764678531055 in words is "seven hundred sixty-four billion, six hundred seventy-eight million, five hundred thirty-one thousand, fifty-five".