1042721776041 has 16 divisors (see below), whose sum is σ = 1548956141568. Its totient is φ = 618506790800.

The previous prime is 1042721776009. The next prime is 1042721776043. The reversal of 1042721776041 is 1406771272401.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1042721776041 - 2⁵ = 1042721776009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1042721775984 and 1042721776002.

It is not an unprimeable number, because it can be changed into a prime (1042721776043) 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, 336143445 + ... + 336146546.

It is an arithmetic number, because the mean of its divisors is an integer number (96809758848).

Almost surely, 2^{1042721776041} is an apocalyptic number.

1042721776041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1042721776041 is a deficient number, since it is larger than the sum of its proper divisors (506234365527).

1042721776041 is a wasteful number, since it uses less digits than its factorization.

1042721776041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672290052.

The product of its (nonzero) digits is 131712, while the sum is 42.

The spelling of 1042721776041 in words is "one trillion, forty-two billion, seven hundred twenty-one million, seven hundred seventy-six thousand, forty-one".