63494744075 has 12 divisors (see below), whose sum is σ = 89981123280. Its totient is φ = 43539252960.

The previous prime is 63494744063. The next prime is 63494744113. The reversal of 63494744075 is 57044749436.

It is a happy number.

It is not a de Polignac number, because 63494744075 - 2⁴ = 63494744059 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181413380 + ... + 181413729.

It is an arithmetic number, because the mean of its divisors is an integer number (7498426940).

Almost surely, 2^63494744075 is an apocalyptic number.

63494744075 is a deficient number, since it is larger than the sum of its proper divisors (26486379205).

63494744075 is a wasteful number, since it uses less digits than its factorization.

63494744075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362827126 (or 362827121 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 53.

The spelling of 63494744075 in words is "sixty-three billion, four hundred ninety-four million, seven hundred forty-four thousand, seventy-five".