402965472081 has 4 divisors (see below), whose sum is σ = 537287296112. Its totient is φ = 268643648052.

The previous prime is 402965472067. The next prime is 402965472089. The reversal of 402965472081 is 180274569204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 402965472081 - 2³⁰ = 401891730257 is a prime.

It is a super-2 number, since 2×402965472081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402965472081.

It is not an unprimeable number, because it can be changed into a prime (402965472089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67160912011 + ... + 67160912016.

It is an arithmetic number, because the mean of its divisors is an integer number (134321824028).

Almost surely, 2^402965472081 is an apocalyptic number.

It is an amenable number.

402965472081 is a deficient number, since it is larger than the sum of its proper divisors (134321824031).

402965472081 is a wasteful number, since it uses less digits than its factorization.

402965472081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134321824030.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 402965472081 in words is "four hundred two billion, nine hundred sixty-five million, four hundred seventy-two thousand, eighty-one".