400451022153647 has 8 divisors (see below), whose sum is σ = 400715507362800. Its totient is φ = 400186577294784.

The previous prime is 400451022153601. The next prime is 400451022153691. The reversal of 400451022153647 is 746351220154004.

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 400451022153647 - 2⁴⁰ = 399351510525871 is a prime.

It is a super-2 number, since 2×400451022153647² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400451022153598 and 400451022153607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400451022113647) 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, 9780629 + ... + 29942657.

It is an arithmetic number, because the mean of its divisors is an integer number (50089438420350).

Almost surely, 2^{400451022153647} is an apocalyptic number.

400451022153647 is a deficient number, since it is larger than the sum of its proper divisors (264485209153).

400451022153647 is a wasteful number, since it uses less digits than its factorization.

400451022153647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20175145.

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 400451022153647 in words is "four hundred trillion, four hundred fifty-one billion, twenty-two million, one hundred fifty-three thousand, six hundred forty-seven".