1297356400772 has 24 divisors (see below), whose sum is σ = 2319097751040. Its totient is φ = 634762022400.

The previous prime is 1297356400699. The next prime is 1297356400793. The reversal of 1297356400772 is 2770046537921.

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 7 ways as a sum of consecutive naturals, for example, 427397 + ... + 1666547.

It is an arithmetic number, because the mean of its divisors is an integer number (96629072960).

Almost surely, 2^{1297356400772} is an apocalyptic number.

It is an amenable number.

1297356400772 is a deficient number, since it is larger than the sum of its proper divisors (1021741350268).

1297356400772 is a wasteful number, since it uses less digits than its factorization.

1297356400772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244771 (or 1244769 counting only the distinct ones).

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

The spelling of 1297356400772 in words is "one trillion, two hundred ninety-seven billion, three hundred fifty-six million, four hundred thousand, seven hundred seventy-two".