248645771623 has 4 divisors (see below), whose sum is σ = 251107611048. Its totient is φ = 246183932200.

The previous prime is 248645771611. The next prime is 248645771657. The reversal of 248645771623 is 326177546842.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 248645771623 - 2³³ = 240055837031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248645777623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1230919561 + ... + 1230919762.

It is an arithmetic number, because the mean of its divisors is an integer number (62776902762).

Almost surely, 2^248645771623 is an apocalyptic number.

248645771623 is a deficient number, since it is larger than the sum of its proper divisors (2461839425).

248645771623 is a wasteful number, since it uses less digits than its factorization.

248645771623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461839424.

The product of its digits is 13547520, while the sum is 55.

The spelling of 248645771623 in words is "two hundred forty-eight billion, six hundred forty-five million, seven hundred seventy-one thousand, six hundred twenty-three".