499078031698 has 4 divisors (see below), whose sum is σ = 748617047550. Its totient is φ = 249539015848.

The previous prime is 499078031657. The next prime is 499078031723. The reversal of 499078031698 is 896130870994.

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., 285479695809 + 213598335889 = 534303^2 + 462167^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124769507923 + ... + 124769507926.

Almost surely, 2^499078031698 is an apocalyptic number.

499078031698 is a deficient number, since it is larger than the sum of its proper divisors (249539015852).

499078031698 is a wasteful number, since it uses less digits than its factorization.

499078031698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249539015851.

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 499078031698 in words is "four hundred ninety-nine billion, seventy-eight million, thirty-one thousand, six hundred ninety-eight".