245875831387 has 2 divisors, whose sum is σ = 245875831388. Its totient is φ = 245875831386.

The previous prime is 245875831373. The next prime is 245875831393. The reversal of 245875831387 is 783138578542.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245875831387 is a prime.

It is not a weakly prime, because it can be changed into another prime (245875832387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122937915693 + 122937915694.

It is an arithmetic number, because the mean of its divisors is an integer number (122937915694).

Almost surely, 2^245875831387 is an apocalyptic number.

245875831387 is a deficient number, since it is larger than the sum of its proper divisors (1).

245875831387 is an equidigital number, since it uses as much as digits as its factorization.

245875831387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45158400, while the sum is 61.

The spelling of 245875831387 in words is "two hundred forty-five billion, eight hundred seventy-five million, eight hundred thirty-one thousand, three hundred eighty-seven".