1397260575506 has 32 divisors (see below), whose sum is σ = 2156225111040. Its totient is φ = 678584506176.

The previous prime is 1397260575479. The next prime is 1397260575533. The reversal of 1397260575506 is 6055750627931.

It is an interprime number because it is at equal distance from previous prime (1397260575479) and next prime (1397260575533).

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 15 ways as a sum of consecutive naturals, for example, 144355175 + ... + 144364853.

It is an arithmetic number, because the mean of its divisors is an integer number (67382034720).

Almost surely, 2^{1397260575506} is an apocalyptic number.

1397260575506 is a deficient number, since it is larger than the sum of its proper divisors (758964535534).

1397260575506 is a wasteful number, since it uses less digits than its factorization.

1397260575506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12858.

The product of its (nonzero) digits is 11907000, while the sum is 56.

The spelling of 1397260575506 in words is "one trillion, three hundred ninety-seven billion, two hundred sixty million, five hundred seventy-five thousand, five hundred six".