63451205545 has 64 divisors (see below), whose sum is σ = 97100881920. Its totient is φ = 38714876928.

The previous prime is 63451205491. The next prime is 63451205551. The reversal of 63451205545 is 54550215436.

It is not a de Polignac number, because 63451205545 - 2⁷ = 63451205417 is a prime.

It is a super-2 number, since 2×63451205545² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63451205498 and 63451205507.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8929464 + ... + 8936566.

It is an arithmetic number, because the mean of its divisors is an integer number (1517201280).

Almost surely, 2^63451205545 is an apocalyptic number.

63451205545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63451205545 is a deficient number, since it is larger than the sum of its proper divisors (33649676375).

63451205545 is a wasteful number, since it uses less digits than its factorization.

63451205545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7834.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 63451205545 in words is "sixty-three billion, four hundred fifty-one million, two hundred five thousand, five hundred forty-five".