406362787138 has 16 divisors (see below), whose sum is σ = 759951186624. Its totient is φ = 158323163760.

The previous prime is 406362787123. The next prime is 406362787139. The reversal of 406362787138 is 831787263604.

It is not an unprimeable number, because it can be changed into a prime (406362787139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1319359545 + ... + 1319359852.

It is an arithmetic number, because the mean of its divisors is an integer number (47496949164).

Almost surely, 2^406362787138 is an apocalyptic number.

406362787138 is a deficient number, since it is larger than the sum of its proper divisors (353588399486).

406362787138 is a wasteful number, since it uses less digits than its factorization.

406362787138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638719417.

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 406362787138 in words is "four hundred six billion, three hundred sixty-two million, seven hundred eighty-seven thousand, one hundred thirty-eight".