401534151012 has 36 divisors (see below), whose sum is σ = 1015231092876. Its totient is φ = 133812806400.

The previous prime is 401534150977. The next prime is 401534151017. The reversal of 401534151012 is 210151435104.

It can be written as a sum of positive squares in 2 ways, for example, as 203630172516 + 197903978496 = 451254^2 + 444864^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×401534151012² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401534151017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1176273 + ... + 1478744.

It is an arithmetic number, because the mean of its divisors is an integer number (28200863691).

Almost surely, 2^401534151012 is an apocalyptic number.

It is an amenable number.

401534151012 is an abundant number, since it is smaller than the sum of its proper divisors (613696941864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401534151012 is a wasteful number, since it uses less digits than its factorization.

401534151012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659228 (or 2659223 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 401534151012 its reverse (210151435104), we get a palindrome (611685586116).

The spelling of 401534151012 in words is "four hundred one billion, five hundred thirty-four million, one hundred fifty-one thousand, twelve".