63948147478 has 16 divisors (see below), whose sum is σ = 101569703760. Its totient is φ = 30091764736.

The previous prime is 63948147469. The next prime is 63948147481. The reversal of 63948147478 is 87474184936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992613 + ... + 1055071.

It is an arithmetic number, because the mean of its divisors is an integer number (6348106485).

Almost surely, 2^63948147478 is an apocalyptic number.

63948147478 is a deficient number, since it is larger than the sum of its proper divisors (37621556282).

63948147478 is a wasteful number, since it uses less digits than its factorization.

63948147478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92591.

The product of its digits is 32514048, while the sum is 61.

The spelling of 63948147478 in words is "sixty-three billion, nine hundred forty-eight million, one hundred forty-seven thousand, four hundred seventy-eight".