1264532373251 has 16 divisors (see below), whose sum is σ = 1470159175680. Its totient is φ = 1065162520320.

The previous prime is 1264532373173. The next prime is 1264532373263. The reversal of 1264532373251 is 1523732354621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1264532373251 - 2¹⁸ = 1264532111107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264532373271) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 752510 + ... + 1759356.

It is an arithmetic number, because the mean of its divisors is an integer number (91884948480).

Almost surely, 2^{1264532373251} is an apocalyptic number.

1264532373251 is a deficient number, since it is larger than the sum of its proper divisors (205626802429).

1264532373251 is a wasteful number, since it uses less digits than its factorization.

1264532373251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009954.

The product of its digits is 907200, while the sum is 44.

The spelling of 1264532373251 in words is "one trillion, two hundred sixty-four billion, five hundred thirty-two million, three hundred seventy-three thousand, two hundred fifty-one".