1285826041623 has 16 divisors (see below), whose sum is σ = 1763740145376. Its totient is φ = 832642790400.

The previous prime is 1285826041597. The next prime is 1285826041691. The reversal of 1285826041623 is 3261406285821.

It is not a de Polignac number, because 1285826041623 - 2¹⁰ = 1285826040599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285826042623) 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, 9701478 + ... + 9833123.

It is an arithmetic number, because the mean of its divisors is an integer number (110233759086).

Almost surely, 2^{1285826041623} is an apocalyptic number.

1285826041623 is a deficient number, since it is larger than the sum of its proper divisors (477914103753).

1285826041623 is a wasteful number, since it uses less digits than its factorization.

1285826041623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19535234.

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 1285826041623 in words is "one trillion, two hundred eighty-five billion, eight hundred twenty-six million, forty-one thousand, six hundred twenty-three".