400524661364987 has 2 divisors, whose sum is σ = 400524661364988. Its totient is φ = 400524661364986.

The previous prime is 400524661364977. The next prime is 400524661365041. The reversal of 400524661364987 is 789463166425004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400524661364987 - 2⁴² = 396126614853883 is a prime.

It is not a weakly prime, because it can be changed into another prime (400524661364977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200262330682493 + 200262330682494.

It is an arithmetic number, because the mean of its divisors is an integer number (200262330682494).

It is a 1-persistent number, because it is pandigital, but 2⋅400524661364987 = 801049322729974 is not.

Almost surely, 2^{400524661364987} is an apocalyptic number.

400524661364987 is a deficient number, since it is larger than the sum of its proper divisors (1).

400524661364987 is an equidigital number, since it uses as much as digits as its factorization.

400524661364987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209018880, while the sum is 65.

The spelling of 400524661364987 in words is "four hundred trillion, five hundred twenty-four billion, six hundred sixty-one million, three hundred sixty-four thousand, nine hundred eighty-seven".