2042647543461 has 16 divisors (see below), whose sum is σ = 3150107057664. Its totient is φ = 1153164188784.

The previous prime is 2042647543459. The next prime is 2042647543477. The reversal of 2042647543461 is 1643457462402.

It is not a de Polignac number, because 2042647543461 - 2¹ = 2042647543459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2042647543461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042647543421) 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, 585955671 + ... + 585959156.

It is an arithmetic number, because the mean of its divisors is an integer number (196881691104).

Almost surely, 2^{2042647543461} is an apocalyptic number.

2042647543461 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2042647543461 is a deficient number, since it is larger than the sum of its proper divisors (1107459514203).

2042647543461 is a wasteful number, since it uses less digits than its factorization.

2042647543461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171914920.

The product of its (nonzero) digits is 3870720, while the sum is 48.

The spelling of 2042647543461 in words is "two trillion, forty-two billion, six hundred forty-seven million, five hundred forty-three thousand, four hundred sixty-one".