400653922481 has 16 divisors (see below), whose sum is σ = 435476620800. Its totient is φ = 367212538368.

The previous prime is 400653922453. The next prime is 400653922489. The reversal of 400653922481 is 184229356004.

It is a cyclic number.

It is not a de Polignac number, because 400653922481 - 2¹⁴ = 400653906097 is a prime.

It is a super-2 number, since 2×400653922481² (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 (400653922489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1945301 + ... + 2141378.

It is an arithmetic number, because the mean of its divisors is an integer number (27217288800).

Almost surely, 2^400653922481 is an apocalyptic number.

It is an amenable number.

400653922481 is a deficient number, since it is larger than the sum of its proper divisors (34822698319).

400653922481 is a wasteful number, since it uses less digits than its factorization.

400653922481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086848.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 400653922481 in words is "four hundred billion, six hundred fifty-three million, nine hundred twenty-two thousand, four hundred eighty-one".