1295728957338 has 32 divisors (see below), whose sum is σ = 2658949979136. Its totient is φ = 420715714608.

The previous prime is 1295728957297. The next prime is 1295728957339. The reversal of 1295728957338 is 8337598275921.

It is not an unprimeable number, because it can be changed into a prime (1295728957339) 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, 6747556 + ... + 6936927.

It is an arithmetic number, because the mean of its divisors is an integer number (83092186848).

Almost surely, 2^{1295728957338} is an apocalyptic number.

1295728957338 is an abundant number, since it is smaller than the sum of its proper divisors (1363221021798).

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

1295728957338 is a wasteful number, since it uses less digits than its factorization.

1295728957338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13684898.

The product of its digits is 228614400, while the sum is 69.

The spelling of 1295728957338 in words is "one trillion, two hundred ninety-five billion, seven hundred twenty-eight million, nine hundred fifty-seven thousand, three hundred thirty-eight".