248061450851 has 4 divisors (see below), whose sum is σ = 248063189304. Its totient is φ = 248059712400.

The previous prime is 248061450841. The next prime is 248061450881. The reversal of 248061450851 is 158054160842.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248061450851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248061450811) 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, 633965 + ... + 947646.

It is an arithmetic number, because the mean of its divisors is an integer number (62015797326).

Almost surely, 2^248061450851 is an apocalyptic number.

248061450851 is a deficient number, since it is larger than the sum of its proper divisors (1738453).

248061450851 is a wasteful number, since it uses less digits than its factorization.

248061450851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738452.

The product of its (nonzero) digits is 307200, while the sum is 44.

The spelling of 248061450851 in words is "two hundred forty-eight billion, sixty-one million, four hundred fifty thousand, eight hundred fifty-one".