400867008453 has 14 divisors (see below), whose sum is σ = 601025570694. Its totient is φ = 267244671816.

The previous prime is 400867008431. The next prime is 400867008461. The reversal of 400867008453 is 354800768004.

It can be written as a sum of positive squares in only one way, i.e., 333416166084 + 67450842369 = 577422^2 + 259713^2 .

It is not a de Polignac number, because 400867008453 - 2⁸ = 400867008197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400867008399 and 400867008408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400867008463) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 274942350 + ... + 274943807.

Almost surely, 2^400867008453 is an apocalyptic number.

It is an amenable number.

400867008453 is a deficient number, since it is larger than the sum of its proper divisors (200158562241).

400867008453 is an frugal number, since it uses more digits than its factorization.

400867008453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549886175 (or 549886160 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 400867008453 in words is "four hundred billion, eight hundred sixty-seven million, eight thousand, four hundred fifty-three".