37875659691 has 4 divisors (see below), whose sum is σ = 50500879592. Its totient is φ = 25250439792.

The previous prime is 37875659681. The next prime is 37875659713. The reversal of 37875659691 is 19695657873.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-37875659691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37875659671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6312609946 + ... + 6312609951.

It is an arithmetic number, because the mean of its divisors is an integer number (12625219898).

Almost surely, 2^37875659691 is an apocalyptic number.

37875659691 is a deficient number, since it is larger than the sum of its proper divisors (12625219901).

37875659691 is a wasteful number, since it uses less digits than its factorization.

37875659691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12625219900.

The product of its digits is 85730400, while the sum is 66.

The spelling of 37875659691 in words is "thirty-seven billion, eight hundred seventy-five million, six hundred fifty-nine thousand, six hundred ninety-one".