263641147407 has 32 divisors (see below), whose sum is σ = 429995808000. Its totient is φ = 158316599520.

The previous prime is 263641147361. The next prime is 263641147411. The reversal of 263641147407 is 704741146362.

263641147407 is a `hidden beast` number, since 2 + 63 + 6 + 41 + 147 + 407 = 666.

263641147407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 263641147407 - 2²⁰ = 263640098831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263641147477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4039557 + ... + 4104302.

It is an arithmetic number, because the mean of its divisors is an integer number (13437369000).

Almost surely, 2^263641147407 is an apocalyptic number.

263641147407 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

263641147407 is a deficient number, since it is larger than the sum of its proper divisors (166354660593).

263641147407 is a wasteful number, since it uses less digits than its factorization.

263641147407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8143988 (or 8143982 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 263641147407 in words is "two hundred sixty-three billion, six hundred forty-one million, one hundred forty-seven thousand, four hundred seven".