63378507273 has 32 divisors (see below), whose sum is σ = 87845167872. Its totient is φ = 40611744000.

The previous prime is 63378507253. The next prime is 63378507289. The reversal of 63378507273 is 37270587336.

It is not a de Polignac number, because 63378507273 - 2¹⁰ = 63378506249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63378507253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5162140 + ... + 5174402.

It is an arithmetic number, because the mean of its divisors is an integer number (2745161496).

Almost surely, 2^63378507273 is an apocalyptic number.

It is an amenable number.

63378507273 is a deficient number, since it is larger than the sum of its proper divisors (24466660599).

63378507273 is a wasteful number, since it uses less digits than its factorization.

63378507273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12865.

The product of its (nonzero) digits is 4445280, while the sum is 51.

The spelling of 63378507273 in words is "sixty-three billion, three hundred seventy-eight million, five hundred seven thousand, two hundred seventy-three".