1040051521405 has 16 divisors (see below), whose sum is σ = 1351575348480. Its totient is φ = 763747322688.

The previous prime is 1040051521391. The next prime is 1040051521409. The reversal of 1040051521405 is 5041251500401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040051521405 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040051521409) 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, 44683317 + ... + 44706586.

It is an arithmetic number, because the mean of its divisors is an integer number (84473459280).

Almost surely, 2^{1040051521405} is an apocalyptic number.

It is an amenable number.

1040051521405 is a deficient number, since it is larger than the sum of its proper divisors (311523827075).

1040051521405 is a wasteful number, since it uses less digits than its factorization.

1040051521405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89390100.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 1040051521405 in words is "one trillion, forty billion, fifty-one million, five hundred twenty-one thousand, four hundred five".