63739143970 has 16 divisors (see below), whose sum is σ = 121479310008. Its totient is φ = 23995912960.

The previous prime is 63739143943. The next prime is 63739143971. The reversal of 63739143970 is 7934193736.

63739143970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 45767328489 + 17971815481 = 213933^2 + 134059^2 .

It is not an unprimeable number, because it can be changed into a prime (63739143971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187467901 + ... + 187468240.

Almost surely, 2^63739143970 is an apocalyptic number.

63739143970 is a deficient number, since it is larger than the sum of its proper divisors (57740166038).

63739143970 is a wasteful number, since it uses less digits than its factorization.

63739143970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374936165.

The product of its (nonzero) digits is 2571912, while the sum is 52.

The spelling of 63739143970 in words is "sixty-three billion, seven hundred thirty-nine million, one hundred forty-three thousand, nine hundred seventy".