400471500761 has 2 divisors, whose sum is σ = 400471500762. Its totient is φ = 400471500760.

The previous prime is 400471500749. The next prime is 400471500773. The reversal of 400471500761 is 167005174004.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (400471500749) and next prime (400471500773).

It can be written as a sum of positive squares in only one way, i.e., 357282348361 + 43189152400 = 597731^2 + 207820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400471500761 is a prime.

It is not a weakly prime, because it can be changed into another prime (400471500061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200235750380 + 200235750381.

It is an arithmetic number, because the mean of its divisors is an integer number (200235750381).

Almost surely, 2^400471500761 is an apocalyptic number.

It is an amenable number.

400471500761 is a deficient number, since it is larger than the sum of its proper divisors (1).

400471500761 is an equidigital number, since it uses as much as digits as its factorization.

400471500761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

Adding to 400471500761 its reverse (167005174004), we get a palindrome (567476674765).

The spelling of 400471500761 in words is "four hundred billion, four hundred seventy-one million, five hundred thousand, seven hundred sixty-one".