245783731388 has 24 divisors (see below), whose sum is σ = 463222448640. Its totient is φ = 113435058240.

The previous prime is 245783731381. The next prime is 245783731399. The reversal of 245783731388 is 883137387542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245783731381) 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, 2310818 + ... + 2414838.

It is an arithmetic number, because the mean of its divisors is an integer number (19300935360).

Almost surely, 2^245783731388 is an apocalyptic number.

It is an amenable number.

245783731388 is a deficient number, since it is larger than the sum of its proper divisors (217438717252).

245783731388 is a wasteful number, since it uses less digits than its factorization.

245783731388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149477 (or 149475 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 59.

The spelling of 245783731388 in words is "two hundred forty-five billion, seven hundred eighty-three million, seven hundred thirty-one thousand, three hundred eighty-eight".