248691590087 has 4 divisors (see below), whose sum is σ = 248747593536. Its totient is φ = 248635586640.

The previous prime is 248691590057. The next prime is 248691590101. The reversal of 248691590087 is 780095196842.

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 248691590087 - 2³² = 244396622791 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 (248691590057) 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, 27995063 + ... + 28003944.

It is an arithmetic number, because the mean of its divisors is an integer number (62186898384).

Almost surely, 2^248691590087 is an apocalyptic number.

248691590087 is a deficient number, since it is larger than the sum of its proper divisors (56003449).

248691590087 is an equidigital number, since it uses as much as digits as its factorization.

248691590087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56003448.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 248691590087 in words is "two hundred forty-eight billion, six hundred ninety-one million, five hundred ninety thousand, eighty-seven".