63700668454 has 4 divisors (see below), whose sum is σ = 95551002684. Its totient is φ = 31850334226.

The previous prime is 63700668391. The next prime is 63700668457. The reversal of 63700668454 is 45486600736.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×63700668454² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63700668398 and 63700668407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63700668457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15925167112 + ... + 15925167115.

It is an arithmetic number, because the mean of its divisors is an integer number (23887750671).

Almost surely, 2^63700668454 is an apocalyptic number.

63700668454 is a deficient number, since it is larger than the sum of its proper divisors (31850334230).

63700668454 is a wasteful number, since it uses less digits than its factorization.

63700668454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31850334229.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 63700668454 in words is "sixty-three billion, seven hundred million, six hundred sixty-eight thousand, four hundred fifty-four".