999934140605 has 16 divisors (see below), whose sum is σ = 1209267643440. Its totient is φ = 793730575872.

The previous prime is 999934140599. The next prime is 999934140613. The reversal of 999934140605 is 506041439999.

It can be written as a sum of positive squares in 8 ways, for example, as 465815805049 + 534118335556 = 682507^2 + 730834^2 .

It is a cyclic number.

It is not a de Polignac number, because 999934140605 - 2⁸ = 999934140349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341744 + ... + 1454873.

It is an arithmetic number, because the mean of its divisors is an integer number (75579227715).

Almost surely, 2^999934140605 is an apocalyptic number.

It is an amenable number.

999934140605 is a deficient number, since it is larger than the sum of its proper divisors (209333502835).

999934140605 is a wasteful number, since it uses less digits than its factorization.

999934140605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797488.

The product of its (nonzero) digits is 9447840, while the sum is 59.

The spelling of 999934140605 in words is "nine hundred ninety-nine billion, nine hundred thirty-four million, one hundred forty thousand, six hundred five".