400061946481 has 8 divisors (see below), whose sum is σ = 400932705600. Its totient is φ = 399192126960.

The previous prime is 400061946469. The next prime is 400061946551. The reversal of 400061946481 is 184649160004.

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 400061946481 - 2¹¹ = 400061944433 is a prime.

It is a super-2 number, since 2×400061946481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400061946181) 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, 620971 + ... + 1088911.

It is an arithmetic number, because the mean of its divisors is an integer number (50116588200).

Almost surely, 2^400061946481 is an apocalyptic number.

It is an amenable number.

400061946481 is a deficient number, since it is larger than the sum of its proper divisors (870759119).

400061946481 is a wasteful number, since it uses less digits than its factorization.

400061946481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469799.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 400061946481 in words is "four hundred billion, sixty-one million, nine hundred forty-six thousand, four hundred eighty-one".