401252446041521 has 8 divisors (see below), whose sum is σ = 422373429256800. Its totient is φ = 380131706168640.

The previous prime is 401252446041497. The next prime is 401252446041569. The reversal of 401252446041521 is 125140644252104.

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 401252446041521 - 2⁴² = 396854399530417 is a prime.

It is a super-2 number, since 2×401252446041521² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401252446040521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57446120 + ... + 64051241.

It is an arithmetic number, because the mean of its divisors is an integer number (52796678657100).

Almost surely, 2^{401252446041521} is an apocalyptic number.

It is an amenable number.

401252446041521 is a deficient number, since it is larger than the sum of its proper divisors (21120983215279).

401252446041521 is a wasteful number, since it uses less digits than its factorization.

401252446041521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121671199.

The product of its (nonzero) digits is 307200, while the sum is 41.

The spelling of 401252446041521 in words is "four hundred one trillion, two hundred fifty-two billion, four hundred forty-six million, forty-one thousand, five hundred twenty-one".