402471897311 has 8 divisors (see below), whose sum is σ = 439933140864. Its totient is φ = 365156135320.

The previous prime is 402471897301. The next prime is 402471897349. The reversal of 402471897311 is 113798174204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402471897311 - 2¹⁴ = 402471880927 is a prime.

It is a super-2 number, since 2×402471897311² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402471897301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36364601 + ... + 36375666.

It is an arithmetic number, because the mean of its divisors is an integer number (54991642608).

Almost surely, 2^402471897311 is an apocalyptic number.

402471897311 is a deficient number, since it is larger than the sum of its proper divisors (37461243553).

402471897311 is a wasteful number, since it uses less digits than its factorization.

402471897311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72740781.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 402471897311 in words is "four hundred two billion, four hundred seventy-one million, eight hundred ninety-seven thousand, three hundred eleven".