248783137990 has 16 divisors (see below), whose sum is σ = 451917995760. Its totient is φ = 98600289120.

The previous prime is 248783137987. The next prime is 248783137991. The reversal of 248783137990 is 99731387842.

248783137990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248783137991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114119616 + ... + 114121795.

It is an arithmetic number, because the mean of its divisors is an integer number (28244874735).

Almost surely, 2^248783137990 is an apocalyptic number.

248783137990 is a deficient number, since it is larger than the sum of its proper divisors (203134857770).

248783137990 is a wasteful number, since it uses less digits than its factorization.

248783137990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228241527.

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 248783137990 in words is "two hundred forty-eight billion, seven hundred eighty-three million, one hundred thirty-seven thousand, nine hundred ninety".