37687945240445 has 6 divisors (see below), whose sum is σ = 45225550761342. Its totient is φ = 30150345210488.

The previous prime is 37687945240403. The next prime is 37687945240493. The reversal of 37687945240445 is 54404254978673.

It can be written as a sum of positive squares in only one way, i.e., 30150356192356 + 7537589048089 = 5490934^2 + 2745467^2 .

It is not a de Polignac number, because 37687945240445 - 2⁸ = 37687945240189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12354602 + ... + 15100068.

It is an arithmetic number, because the mean of its divisors is an integer number (7537591793557).

Almost surely, 2^{37687945240445} is an apocalyptic number.

It is an amenable number.

37687945240445 is a deficient number, since it is larger than the sum of its proper divisors (7537605520897).

37687945240445 is an frugal number, since it uses more digits than its factorization.

37687945240445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5490939 (or 2745472 counting only the distinct ones).

The product of its (nonzero) digits is 812851200, while the sum is 68.

The spelling of 37687945240445 in words is "thirty-seven trillion, six hundred eighty-seven billion, nine hundred forty-five million, two hundred forty thousand, four hundred forty-five".