499388557201 has 4 divisors (see below), whose sum is σ = 499390950400. Its totient is φ = 499386164004.

The previous prime is 499388557193. The next prime is 499388557223. The reversal of 499388557201 is 102755883994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102755883994 = 2 ⋅51377941997.

It is a cyclic number.

It is not a de Polignac number, because 499388557201 - 2³ = 499388557193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 499388557201.

It is not an unprimeable number, because it can be changed into a prime (499388557231) 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, 850161 + ... + 1312078.

It is an arithmetic number, because the mean of its divisors is an integer number (124847737600).

Almost surely, 2^499388557201 is an apocalyptic number.

It is an amenable number.

499388557201 is a deficient number, since it is larger than the sum of its proper divisors (2393199).

499388557201 is a wasteful number, since it uses less digits than its factorization.

499388557201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393198.

The product of its (nonzero) digits is 21772800, while the sum is 61.

The spelling of 499388557201 in words is "four hundred ninety-nine billion, three hundred eighty-eight million, five hundred fifty-seven thousand, two hundred one".