63706745007 has 6 divisors (see below), whose sum is σ = 92020853912. Its totient is φ = 42471163332.

The previous prime is 63706744949. The next prime is 63706745041. The reversal of 63706745007 is 70054760736.

63706745007 is a `hidden beast` number, since 6 + 3 + 70 + 6 + 74 + 500 + 7 = 666.

It is not a de Polignac number, because 63706745007 - 2⁶ = 63706744943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63706745107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3539263603 + ... + 3539263620.

Almost surely, 2^63706745007 is an apocalyptic number.

63706745007 is a deficient number, since it is larger than the sum of its proper divisors (28314108905).

63706745007 is a wasteful number, since it uses less digits than its factorization.

63706745007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7078527229 (or 7078527226 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 45.

The spelling of 63706745007 in words is "sixty-three billion, seven hundred six million, seven hundred forty-five thousand, seven".