263123545071672 has 64 divisors (see below), whose sum is σ = 739111081716000. Its totient is φ = 86722366908672.

The previous prime is 263123545071551. The next prime is 263123545071677. The reversal of 263123545071672 is 276170545321362.

263123545071672 is a `hidden beast` number, since 2 + 6 + 3 + 1 + 2 + 3 + 54 + 507 + 16 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263123545071677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6843601903 + ... + 6843640350.

Almost surely, 2^{263123545071672} is an apocalyptic number.

It is an amenable number.

263123545071672 is an abundant number, since it is smaller than the sum of its proper divisors (475987536644328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263123545071672 is a wasteful number, since it uses less digits than its factorization.

263123545071672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13687242357 (or 13687242347 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 263123545071672 in words is "two hundred sixty-three trillion, one hundred twenty-three billion, five hundred forty-five million, seventy-one thousand, six hundred seventy-two".