400708788481 has 16 divisors (see below), whose sum is σ = 415870848000. Its totient is φ = 385691342400.

The previous prime is 400708788457. The next prime is 400708788527. The reversal of 400708788481 is 184887807004.

It is a cyclic number.

It is not a de Polignac number, because 400708788481 - 2²³ = 400700399873 is a prime.

It is a super-2 number, since 2×400708788481² (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 (400708788581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4954951 + ... + 5035171.

It is an arithmetic number, because the mean of its divisors is an integer number (25991928000).

Almost surely, 2^400708788481 is an apocalyptic number.

It is an amenable number.

400708788481 is a deficient number, since it is larger than the sum of its proper divisors (15162059519).

400708788481 is a wasteful number, since it uses less digits than its factorization.

400708788481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81120.

The product of its (nonzero) digits is 3211264, while the sum is 55.

The spelling of 400708788481 in words is "four hundred billion, seven hundred eight million, seven hundred eighty-eight thousand, four hundred eighty-one".