404827912516 has 24 divisors (see below), whose sum is σ = 723153262104. Its totient is φ = 198241178880.

The previous prime is 404827912513. The next prime is 404827912519. The reversal of 404827912516 is 615219728404.

It is an interprime number because it is at equal distance from previous prime (404827912513) and next prime (404827912519).

It can be written as a sum of positive squares in 4 ways, for example, as 68084464900 + 336743447616 = 260930^2 + 580296^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 404827912516.

It is not an unprimeable number, because it can be changed into a prime (404827912513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3503515 + ... + 3617218.

It is an arithmetic number, because the mean of its divisors is an integer number (30131385921).

Almost surely, 2^404827912516 is an apocalyptic number.

It is an amenable number.

404827912516 is a deficient number, since it is larger than the sum of its proper divisors (318325349588).

404827912516 is a wasteful number, since it uses less digits than its factorization.

404827912516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7121031 (or 7121029 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 404827912516 in words is "four hundred four billion, eight hundred twenty-seven million, nine hundred twelve thousand, five hundred sixteen".