400465780054 has 4 divisors (see below), whose sum is σ = 600698670084. Its totient is φ = 200232890026.

The previous prime is 400465780049. The next prime is 400465780067. The reversal of 400465780054 is 450087564004.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100116445012 + ... + 100116445015.

It is an arithmetic number, because the mean of its divisors is an integer number (150174667521).

Almost surely, 2^400465780054 is an apocalyptic number.

400465780054 is a deficient number, since it is larger than the sum of its proper divisors (200232890030).

400465780054 is a wasteful number, since it uses less digits than its factorization.

400465780054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200232890029.

The product of its (nonzero) digits is 537600, while the sum is 43.

The spelling of 400465780054 in words is "four hundred billion, four hundred sixty-five million, seven hundred eighty thousand, fifty-four".