400011412215539 has 4 divisors (see below), whose sum is σ = 400011461718720. Its totient is φ = 400011362712360.

The previous prime is 400011412215497. The next prime is 400011412215689. The reversal of 400011412215539 is 935512214110004.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400011412215539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400011412205539) 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, 9496952 + ... + 29836469.

It is an arithmetic number, because the mean of its divisors is an integer number (100002865429680).

Almost surely, 2^{400011412215539} is an apocalyptic number.

400011412215539 is a deficient number, since it is larger than the sum of its proper divisors (49503181).

400011412215539 is a wasteful number, since it uses less digits than its factorization.

400011412215539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49503180.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 400011412215539 in words is "four hundred trillion, eleven billion, four hundred twelve million, two hundred fifteen thousand, five hundred thirty-nine".