63662421245 has 16 divisors (see below), whose sum is σ = 79052070960. Its totient is φ = 49159509504.

The previous prime is 63662421203. The next prime is 63662421293. The reversal of 63662421245 is 54212426636.

It can be written as a sum of positive squares in 8 ways, for example, as 2623283524 + 61039137721 = 51218^2 + 247061^2 .

It is a cyclic number.

It is not a de Polignac number, because 63662421245 - 2¹⁸ = 63662159101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454049 + ... + 577481.

It is an arithmetic number, because the mean of its divisors is an integer number (4940754435).

Almost surely, 2^63662421245 is an apocalyptic number.

It is an amenable number.

63662421245 is a deficient number, since it is larger than the sum of its proper divisors (15389649715).

63662421245 is a wasteful number, since it uses less digits than its factorization.

63662421245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127024.

The product of its digits is 414720, while the sum is 41.

The spelling of 63662421245 in words is "sixty-three billion, six hundred sixty-two million, four hundred twenty-one thousand, two hundred forty-five".