1042849062981 has 24 divisors (see below), whose sum is σ = 1643362512480. Its totient is φ = 631996965600.

The previous prime is 1042849062977. The next prime is 1042849063033. The reversal of 1042849062981 is 1892609482401.

It is a happy number.

1042849062981 is a `hidden beast` number, since 1 + 0 + 4 + 2 + 8 + 4 + 9 + 0 + 629 + 8 + 1 = 666.

1042849062981 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1042849062981 - 2² = 1042849062977 is a prime.

It is a super-2 number, since 2×1042849062981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042849062971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1719010 + ... + 2245148.

It is an arithmetic number, because the mean of its divisors is an integer number (68473438020).

Almost surely, 2^{1042849062981} is an apocalyptic number.

1042849062981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1042849062981 is a deficient number, since it is larger than the sum of its proper divisors (600513449499).

1042849062981 is a wasteful number, since it uses less digits than its factorization.

1042849062981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546177 (or 546174 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 1042849062981 in words is "one trillion, forty-two billion, eight hundred forty-nine million, sixty-two thousand, nine hundred eighty-one".