1261207246287 has 16 divisors (see below), whose sum is σ = 1692994291200. Its totient is φ = 835113174432.

The previous prime is 1261207246259. The next prime is 1261207246301. The reversal of 1261207246287 is 7826427021621.

It is not a de Polignac number, because 1261207246287 - 2¹⁴ = 1261207229903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261207246217) 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, 8627478 + ... + 8772444.

It is an arithmetic number, because the mean of its divisors is an integer number (105812143200).

Almost surely, 2^{1261207246287} is an apocalyptic number.

1261207246287 is a deficient number, since it is larger than the sum of its proper divisors (431787044913).

1261207246287 is a wasteful number, since it uses less digits than its factorization.

1261207246287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164582.

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 1261207246287 in words is "one trillion, two hundred sixty-one billion, two hundred seven million, two hundred forty-six thousand, two hundred eighty-seven".