63708730043 has 4 divisors (see below), whose sum is σ = 72809977200. Its totient is φ = 54607482888.

The previous prime is 63708730031. The next prime is 63708730067. The reversal of 63708730043 is 34003780736.

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

It is not a de Polignac number, because 63708730043 - 2¹² = 63708725947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63708730543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4550623568 + ... + 4550623581.

It is an arithmetic number, because the mean of its divisors is an integer number (18202494300).

Almost surely, 2^63708730043 is an apocalyptic number.

63708730043 is a deficient number, since it is larger than the sum of its proper divisors (9101247157).

63708730043 is an equidigital number, since it uses as much as digits as its factorization.

63708730043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9101247156.

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 63708730043 in words is "sixty-three billion, seven hundred eight million, seven hundred thirty thousand, forty-three".