402466506481 has 16 divisors (see below), whose sum is σ = 436634758224. Its totient is φ = 368761595904.

The previous prime is 402466506451. The next prime is 402466506493. The reversal of 402466506481 is 184605664204.

It can be written as a sum of positive squares in 8 ways, for example, as 60230976400 + 342235530081 = 245420^2 + 585009^2 .

It is not a de Polignac number, because 402466506481 - 2¹⁵ = 402466473713 is a prime.

It is a super-2 number, since 2×402466506481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402466506401) 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, 1893141 + ... + 2094973.

It is an arithmetic number, because the mean of its divisors is an integer number (27289672389).

Almost surely, 2^402466506481 is an apocalyptic number.

It is an amenable number.

402466506481 is a deficient number, since it is larger than the sum of its proper divisors (34168251743).

402466506481 is a wasteful number, since it uses less digits than its factorization.

402466506481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202980.

The product of its (nonzero) digits is 1105920, while the sum is 46.

The spelling of 402466506481 in words is "four hundred two billion, four hundred sixty-six million, five hundred six thousand, four hundred eighty-one".