505978358542 has 8 divisors (see below), whose sum is σ = 766060692696. Its totient is φ = 250624794312.

The previous prime is 505978358497. The next prime is 505978358549. The reversal of 505978358542 is 245853879505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505978358549) 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, 1182192213 + ... + 1182192640.

It is an arithmetic number, because the mean of its divisors is an integer number (95757586587).

Almost surely, 2^505978358542 is an apocalyptic number.

505978358542 is a deficient number, since it is larger than the sum of its proper divisors (260082334154).

505978358542 is a wasteful number, since it uses less digits than its factorization.

505978358542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364384962.

The product of its (nonzero) digits is 60480000, while the sum is 61.

The spelling of 505978358542 in words is "five hundred five billion, nine hundred seventy-eight million, three hundred fifty-eight thousand, five hundred forty-two".