400112655945 has 32 divisors (see below), whose sum is σ = 684549221760. Its totient is φ = 198852326400.

The previous prime is 400112655937. The next prime is 400112655961. The reversal of 400112655945 is 549556211004.

It is a happy number.

It is not a de Polignac number, because 400112655945 - 2³ = 400112655937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400112655897 and 400112655906.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7741915 + ... + 7793424.

It is an arithmetic number, because the mean of its divisors is an integer number (21392163180).

Almost surely, 2^400112655945 is an apocalyptic number.

It is an amenable number.

400112655945 is a deficient number, since it is larger than the sum of its proper divisors (284436565815).

400112655945 is a wasteful number, since it uses less digits than its factorization.

400112655945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15535465.

The product of its (nonzero) digits is 216000, while the sum is 42.

Adding to 400112655945 its reverse (549556211004), we get a palindrome (949668866949).

The spelling of 400112655945 in words is "four hundred billion, one hundred twelve million, six hundred fifty-five thousand, nine hundred forty-five".