63378600525261 has 96 divisors (see below), whose sum is σ = 110245921443840. Its totient is φ = 34274613238272.

The previous prime is 63378600525239. The next prime is 63378600525263. The reversal of 63378600525261 is 16252500687336.

63378600525261 is a `hidden beast` number, since 6 + 3 + 3 + 7 + 8 + 60 + 0 + 52 + 526 + 1 = 666.

It is not a de Polignac number, because 63378600525261 - 2⁶ = 63378600525197 is a prime.

It is a super-2 number, since 2×63378600525261² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63378600525198 and 63378600525207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63378600525263) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7660892821 + ... + 7660901093.

It is an arithmetic number, because the mean of its divisors is an integer number (1148395015040).

Almost surely, 2^{63378600525261} is an apocalyptic number.

It is an amenable number.

63378600525261 is a deficient number, since it is larger than the sum of its proper divisors (46867320918579).

63378600525261 is a wasteful number, since it uses less digits than its factorization.

63378600525261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14175 (or 14172 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 54.

The spelling of 63378600525261 in words is "sixty-three trillion, three hundred seventy-eight billion, six hundred million, five hundred twenty-five thousand, two hundred sixty-one".