1206399926247 has 16 divisors (see below), whose sum is σ = 1631301608448. Its totient is φ = 792884000160.

The previous prime is 1206399926233. The next prime is 1206399926267. The reversal of 1206399926247 is 7426299936021.

It is not a de Polignac number, because 1206399926247 - 2¹⁰ = 1206399925223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206399926267) 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, 3009138 + ... + 3386400.

It is an arithmetic number, because the mean of its divisors is an integer number (101956350528).

Almost surely, 2^{1206399926247} is an apocalyptic number.

1206399926247 is a deficient number, since it is larger than the sum of its proper divisors (424901682201).

1206399926247 is a wasteful number, since it uses less digits than its factorization.

1206399926247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392350.

The product of its (nonzero) digits is 17635968, while the sum is 60.

The spelling of 1206399926247 in words is "one trillion, two hundred six billion, three hundred ninety-nine million, nine hundred twenty-six thousand, two hundred forty-seven".