263625777045 has 24 divisors (see below), whose sum is σ = 465573074616. Its totient is φ = 137947575168.

The previous prime is 263625777029. The next prime is 263625777053. The reversal of 263625777045 is 540777526362.

It is a happy number.

263625777045 is a `hidden beast` number, since 2 + 6 + 3 + 62 + 577 + 7 + 0 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 127185670161 + 136440106884 = 356631^2 + 369378^2 .

It is not a de Polignac number, because 263625777045 - 2⁴ = 263625777029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 263625776982 and 263625777000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55265074 + ... + 55269843.

It is an arithmetic number, because the mean of its divisors is an integer number (19398878109).

Almost surely, 2^263625777045 is an apocalyptic number.

It is an amenable number.

263625777045 is a deficient number, since it is larger than the sum of its proper divisors (201947297571).

263625777045 is a wasteful number, since it uses less digits than its factorization.

263625777045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110534981 (or 110534978 counting only the distinct ones).

The product of its (nonzero) digits is 14817600, while the sum is 54.

The spelling of 263625777045 in words is "two hundred sixty-three billion, six hundred twenty-five million, seven hundred seventy-seven thousand, forty-five".