1299294261804 has 192 divisors, whose sum is σ = 4013915996160. Its totient is φ = 316887137280.

The previous prime is 1299294261799. The next prime is 1299294261809. The reversal of 1299294261804 is 4081624929921.

It is an interprime number because it is at equal distance from previous prime (1299294261799) and next prime (1299294261809).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (1299294261809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1656357 + ... + 2311299.

It is an arithmetic number, because the mean of its divisors is an integer number (20905812480).

Almost surely, 2^{1299294261804} is an apocalyptic number.

1299294261804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1299294261804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2006957998080).

1299294261804 is an abundant number, since it is smaller than the sum of its proper divisors (2714621734356).

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

1299294261804 is a wasteful number, since it uses less digits than its factorization.

1299294261804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655100 (or 655098 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 1299294261804 in words is "one trillion, two hundred ninety-nine billion, two hundred ninety-four million, two hundred sixty-one thousand, eight hundred four".