63437751745 has 8 divisors (see below), whose sum is σ = 76241883816. Its totient is φ = 50672480256.

The previous prime is 63437751739. The next prime is 63437751763. The reversal of 63437751745 is 54715773436.

63437751745 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 18395521 + 63419356224 = 4289^2 + 251832^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63437751745 - 2³¹ = 61290268097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63437751692 and 63437751701.

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, 9711552 + ... + 9718081.

It is an arithmetic number, because the mean of its divisors is an integer number (9530235477).

Almost surely, 2^63437751745 is an apocalyptic number.

It is an amenable number.

63437751745 is a deficient number, since it is larger than the sum of its proper divisors (12804132071).

63437751745 is a wasteful number, since it uses less digits than its factorization.

63437751745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19430291.

The product of its digits is 7408800, while the sum is 52.

The spelling of 63437751745 in words is "sixty-three billion, four hundred thirty-seven million, seven hundred fifty-one thousand, seven hundred forty-five".