37945841642 has 16 divisors (see below), whose sum is σ = 58892403240. Its totient is φ = 18315283392.

The previous prime is 37945841641. The next prime is 37945841657. The reversal of 37945841642 is 24614854973.

It can be written as a sum of positive squares in 4 ways, for example, as 28294940521 + 9650901121 = 168211^2 + 98239^2 .

It is not an unprimeable number, because it can be changed into a prime (37945841641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270008 + ... + 385740.

Almost surely, 2^37945841642 is an apocalyptic number.

37945841642 is a deficient number, since it is larger than the sum of its proper divisors (20946561598).

37945841642 is a wasteful number, since it uses less digits than its factorization.

37945841642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121417.

The product of its digits is 5806080, while the sum is 53.

The spelling of 37945841642 in words is "thirty-seven billion, nine hundred forty-five million, eight hundred forty-one thousand, six hundred forty-two".