63940003006 has 32 divisors (see below), whose sum is σ = 106698404736. Its totient is φ = 28494180000.

The previous prime is 63940002953. The next prime is 63940003007. The reversal of 63940003006 is 60030004936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63940003007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105556 + ... + 372856.

It is an arithmetic number, because the mean of its divisors is an integer number (3334325148).

Almost surely, 2^63940003006 is an apocalyptic number.

63940003006 is a deficient number, since it is larger than the sum of its proper divisors (42758401730).

63940003006 is a wasteful number, since it uses less digits than its factorization.

63940003006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267528.

The product of its (nonzero) digits is 11664, while the sum is 31.

The spelling of 63940003006 in words is "sixty-three billion, nine hundred forty million, three thousand, six".