1234500672779 has 24 divisors (see below), whose sum is σ = 1363818414336. Its totient is φ = 1116580172400.

The previous prime is 1234500672763. The next prime is 1234500672791. The reversal of 1234500672779 is 9772760054321.

It is not a de Polignac number, because 1234500672779 - 2⁴ = 1234500672763 is a prime.

It is a super-2 number, since 2×1234500672779² (a number of 25 digits) contains 22 as substring.

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 1234500672779.

It is not an unprimeable number, because it can be changed into a prime (1234500672709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100662602 + ... + 100674864.

It is an arithmetic number, because the mean of its divisors is an integer number (56825767264).

Almost surely, 2^{1234500672779} is an apocalyptic number.

1234500672779 is a deficient number, since it is larger than the sum of its proper divisors (129317741557).

1234500672779 is a wasteful number, since it uses less digits than its factorization.

1234500672779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16439 (or 16428 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 53.

The spelling of 1234500672779 in words is "one trillion, two hundred thirty-four billion, five hundred million, six hundred seventy-two thousand, seven hundred seventy-nine".