499704081386 has 4 divisors (see below), whose sum is σ = 749556122082. Its totient is φ = 249852040692.

The previous prime is 499704081379. The next prime is 499704081413. The reversal of 499704081386 is 683180407994.

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

It can be written as a sum of positive squares in only one way, i.e., 340786245361 + 158917836025 = 583769^2 + 398645^2 .

It is a super-2 number, since 2×499704081386² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124926020345 + ... + 124926020348.

Almost surely, 2^499704081386 is an apocalyptic number.

499704081386 is a deficient number, since it is larger than the sum of its proper divisors (249852040696).

499704081386 is a wasteful number, since it uses less digits than its factorization.

499704081386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249852040695.

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 499704081386 in words is "four hundred ninety-nine billion, seven hundred four million, eighty-one thousand, three hundred eighty-six".