1261458402207 has 8 divisors (see below), whose sum is σ = 1682049127680. Its totient is φ = 840919972440.

The previous prime is 1261458402203. The next prime is 1261458402227. The reversal of 1261458402207 is 7022048541621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1261458402207 - 2² = 1261458402203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261458402203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13017607 + ... + 13114152.

It is an arithmetic number, because the mean of its divisors is an integer number (210256140960).

Almost surely, 2^{1261458402207} is an apocalyptic number.

1261458402207 is a deficient number, since it is larger than the sum of its proper divisors (420590725473).

1261458402207 is a wasteful number, since it uses less digits than its factorization.

1261458402207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26147853.

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 1261458402207 in words is "one trillion, two hundred sixty-one billion, four hundred fifty-eight million, four hundred two thousand, two hundred seven".