307145841638 has 16 divisors (see below), whose sum is σ = 465404375040. Its totient is φ = 152016560136.

The previous prime is 307145841623. The next prime is 307145841677. The reversal of 307145841638 is 836148541703.

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, 1265756 + ... + 1488767.

It is an arithmetic number, because the mean of its divisors is an integer number (29087773440).

Almost surely, 2^307145841638 is an apocalyptic number.

307145841638 is a deficient number, since it is larger than the sum of its proper divisors (158258533402).

307145841638 is a wasteful number, since it uses less digits than its factorization.

307145841638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755091.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 307145841638 in words is "three hundred seven billion, one hundred forty-five million, eight hundred forty-one thousand, six hundred thirty-eight".