1298794620288 has 128 divisors (see below), whose sum is σ = 3855347072640. Its totient is φ = 383974707200.

The previous prime is 1298794620287. The next prime is 1298794620293. The reversal of 1298794620288 is 8820264978921.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298794620287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3576570 + ... + 3922937.

It is an arithmetic number, because the mean of its divisors is an integer number (30119899005).

Almost surely, 2^{1298794620288} is an apocalyptic number.

It is an amenable number.

1298794620288 is an abundant number, since it is smaller than the sum of its proper divisors (2556552452352).

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

1298794620288 is a wasteful number, since it uses less digits than its factorization.

1298794620288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7499576 (or 7499564 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 66.

The spelling of 1298794620288 in words is "one trillion, two hundred ninety-eight billion, seven hundred ninety-four million, six hundred twenty thousand, two hundred eighty-eight".