401533671329 has 32 divisors (see below), whose sum is σ = 470803200000. Its totient is φ = 342306119232.

The previous prime is 401533671313. The next prime is 401533671389. The reversal of 401533671329 is 923176335104.

It is not a de Polignac number, because 401533671329 - 2⁴ = 401533671313 is a prime.

It is a super-2 number, since 2×401533671329² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401533671329.

It is not an unprimeable number, because it can be changed into a prime (401533671389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118479767 + ... + 118483155.

It is an arithmetic number, because the mean of its divisors is an integer number (14712600000).

Almost surely, 2^401533671329 is an apocalyptic number.

401533671329 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

401533671329 is a deficient number, since it is larger than the sum of its proper divisors (69269528671).

401533671329 is a wasteful number, since it uses less digits than its factorization.

401533671329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182 (or 5168 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 401533671329 in words is "four hundred one billion, five hundred thirty-three million, six hundred seventy-one thousand, three hundred twenty-nine".