405738050487 has 16 divisors (see below), whose sum is σ = 674473642752. Its totient is φ = 210773013120.

The previous prime is 405738050467. The next prime is 405738050489. The reversal of 405738050487 is 784050837504.

It is not a de Polignac number, because 405738050487 - 2¹⁰ = 405738049463 is a prime.

It is a super-2 number, since 2×405738050487² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405738050489) 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, 878220658 + ... + 878221119.

It is an arithmetic number, because the mean of its divisors is an integer number (42154602672).

Almost surely, 2^405738050487 is an apocalyptic number.

405738050487 is a deficient number, since it is larger than the sum of its proper divisors (268735592265).

405738050487 is a wasteful number, since it uses less digits than its factorization.

405738050487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756441798.

The product of its (nonzero) digits is 3763200, while the sum is 51.

The spelling of 405738050487 in words is "four hundred five billion, seven hundred thirty-eight million, fifty thousand, four hundred eighty-seven".