400880448877 has 2 divisors, whose sum is σ = 400880448878. Its totient is φ = 400880448876.

The previous prime is 400880448869. The next prime is 400880448893. The reversal of 400880448877 is 778844088004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375957827716 + 24922621161 = 613154^2 + 157869^2 .

It is a cyclic number.

It is not a de Polignac number, because 400880448877 - 2³ = 400880448869 is a prime.

It is a super-2 number, since 2×400880448877² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400880445877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200440224438 + 200440224439.

It is an arithmetic number, because the mean of its divisors is an integer number (200440224439).

Almost surely, 2^400880448877 is an apocalyptic number.

It is an amenable number.

400880448877 is a deficient number, since it is larger than the sum of its proper divisors (1).

400880448877 is an equidigital number, since it uses as much as digits as its factorization.

400880448877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12845056, while the sum is 58.

The spelling of 400880448877 in words is "four hundred billion, eight hundred eighty million, four hundred forty-eight thousand, eight hundred seventy-seven".