639030004497 has 24 divisors (see below), whose sum is σ = 963715207104. Its totient is φ = 407269124064.

The previous prime is 639030004463. The next prime is 639030004553. The reversal of 639030004497 is 794400030936.

639030004497 is a `hidden beast` number, since 639 + 0 + 3 + 0 + 0 + 0 + 4 + 4 + 9 + 7 = 666.

It is not a de Polignac number, because 639030004497 - 2⁸ = 639030004241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (639030002497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493858 + ... + 1233675.

It is an arithmetic number, because the mean of its divisors is an integer number (40154800296).

Almost surely, 2^639030004497 is an apocalyptic number.

It is an amenable number.

639030004497 is a deficient number, since it is larger than the sum of its proper divisors (324685202607).

639030004497 is a wasteful number, since it uses less digits than its factorization.

639030004497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729349 (or 1729346 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 639030004497 in words is "six hundred thirty-nine billion, thirty million, four thousand, four hundred ninety-seven".