406396525087 has 4 divisors (see below), whose sum is σ = 464453171536. Its totient is φ = 348339878640.

The previous prime is 406396525063. The next prime is 406396525103. The reversal of 406396525087 is 780525693604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406396525087 - 2⁷ = 406396524959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406396525187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29028323214 + ... + 29028323227.

It is an arithmetic number, because the mean of its divisors is an integer number (116113292884).

Almost surely, 2^406396525087 is an apocalyptic number.

406396525087 is a deficient number, since it is larger than the sum of its proper divisors (58056646449).

406396525087 is an equidigital number, since it uses as much as digits as its factorization.

406396525087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58056646448.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 406396525087 in words is "four hundred six billion, three hundred ninety-six million, five hundred twenty-five thousand, eighty-seven".