245213638766 has 16 divisors (see below), whose sum is σ = 381530246064. Its totient is φ = 118115008704.

The previous prime is 245213638759. The next prime is 245213638801. The reversal of 245213638766 is 667836312542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19523321 + ... + 19535876.

It is an arithmetic number, because the mean of its divisors is an integer number (23845640379).

Almost surely, 2^245213638766 is an apocalyptic number.

245213638766 is a deficient number, since it is larger than the sum of its proper divisors (136316607298).

245213638766 is a wasteful number, since it uses less digits than its factorization.

245213638766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39059315.

The product of its digits is 8709120, while the sum is 53.

The spelling of 245213638766 in words is "two hundred forty-five billion, two hundred thirteen million, six hundred thirty-eight thousand, seven hundred sixty-six".