1298700011984 has 20 divisors (see below), whose sum is σ = 2664244878084. Its totient is φ = 611152946688.

The previous prime is 1298700011977. The next prime is 1298700011993. The reversal of 1298700011984 is 4891100078921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1055493226384 + 243206785600 = 1027372^2 + 493160^2 .

It is a super-2 number, since 2×1298700011984² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2387315927 + ... + 2387316470.

Almost surely, 2^{1298700011984} is an apocalyptic number.

It is an amenable number.

1298700011984 is an abundant number, since it is smaller than the sum of its proper divisors (1365544866100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1298700011984 is a wasteful number, since it uses less digits than its factorization.

1298700011984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774632422 (or 4774632416 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 50.

The spelling of 1298700011984 in words is "one trillion, two hundred ninety-eight billion, seven hundred million, eleven thousand, nine hundred eighty-four".