507256780801 has 4 divisors (see below), whose sum is σ = 509230542852. Its totient is φ = 505283018752.

The previous prime is 507256780781. The next prime is 507256780817. The reversal of 507256780801 is 108087652705.

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

It can be written as a sum of positive squares in 2 ways, for example, as 501156389776 + 6100391025 = 707924^2 + 78105^2 .

It is a cyclic number.

It is not a de Polignac number, because 507256780801 - 2¹⁷ = 507256649729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507256780861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986880640 + ... + 986881153.

It is an arithmetic number, because the mean of its divisors is an integer number (127307635713).

Almost surely, 2^507256780801 is an apocalyptic number.

It is an amenable number.

507256780801 is a deficient number, since it is larger than the sum of its proper divisors (1973762051).

507256780801 is a wasteful number, since it uses less digits than its factorization.

507256780801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973762050.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 507256780801 in words is "five hundred seven billion, two hundred fifty-six million, seven hundred eighty thousand, eight hundred one".