400498753898741 has 2 divisors, whose sum is σ = 400498753898742. Its totient is φ = 400498753898740.

The previous prime is 400498753898731. The next prime is 400498753898921. The reversal of 400498753898741 is 147898357894004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346806072652900 + 53692681245841 = 18622730^2 + 7327529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400498753898741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400498753898731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200249376949370 + 200249376949371.

It is an arithmetic number, because the mean of its divisors is an integer number (200249376949371).

Almost surely, 2^{400498753898741} is an apocalyptic number.

It is an amenable number.

400498753898741 is a deficient number, since it is larger than the sum of its proper divisors (1).

400498753898741 is an equidigital number, since it uses as much as digits as its factorization.

400498753898741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1950842880, while the sum is 77.

The spelling of 400498753898741 in words is "four hundred trillion, four hundred ninety-eight billion, seven hundred fifty-three million, eight hundred ninety-eight thousand, seven hundred forty-one".