10248138557 has 4 divisors (see below), whose sum is σ = 10249754496. Its totient is φ = 10246522620.

The previous prime is 10248138553. The next prime is 10248138583. The reversal of 10248138557 is 75583184201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10248138557 - 2² = 10248138553 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 (10248138553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 798419 + ... + 811152.

It is an arithmetic number, because the mean of its divisors is an integer number (2562438624).

Almost surely, 2^10248138557 is an apocalyptic number.

It is an amenable number.

10248138557 is a deficient number, since it is larger than the sum of its proper divisors (1615939).

10248138557 is an equidigital number, since it uses as much as digits as its factorization.

10248138557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615938.

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 10248138557 in words is "ten billion, two hundred forty-eight million, one hundred thirty-eight thousand, five hundred fifty-seven".