1295289339904 has 104 divisors (see below), whose sum is σ = 2965381570368. Its totient is φ = 554171105280.

The previous prime is 1295289339893. The next prime is 1295289339913. The reversal of 1295289339904 is 4099339825921.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16791984 + ... + 16868944.

Almost surely, 2^{1295289339904} is an apocalyptic number.

1295289339904 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 1295289339904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1482690785184).

1295289339904 is an abundant number, since it is smaller than the sum of its proper divisors (1670092230464).

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

1295289339904 is an frugal number, since it uses more digits than its factorization.

1295289339904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77579 (or 77557 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 64.

The spelling of 1295289339904 in words is "one trillion, two hundred ninety-five billion, two hundred eighty-nine million, three hundred thirty-nine thousand, nine hundred four".