63750947611 has 32 divisors (see below), whose sum is σ = 73185136640. Its totient is φ = 55112400000.

The previous prime is 63750947581. The next prime is 63750947651. The reversal of 63750947611 is 11674905736.

It is a 9-Lehmer number, since φ(63750947611) divides (63750947611-1)⁹.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63750947611 is a prime.

It is the 252490-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63750947651) by changing a digit.

It is a nontrivial repunit in base 252489.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1871986 + ... + 1905736.

It is an arithmetic number, because the mean of its divisors is an integer number (2287035520).

Almost surely, 2^63750947611 is an apocalyptic number.

63750947611 is a deficient number, since it is larger than the sum of its proper divisors (9434189029).

63750947611 is a wasteful number, since it uses less digits than its factorization.

63750947611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33947.

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 63750947611 in words is "sixty-three billion, seven hundred fifty million, nine hundred forty-seven thousand, six hundred eleven".