37948646609 has 4 divisors (see below), whose sum is σ = 39257220660. Its totient is φ = 36640072560.

The previous prime is 37948646597. The next prime is 37948646633. The reversal of 37948646609 is 90664684973.

37948646609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18544992400 + 19403654209 = 136180^2 + 139297^2 .

It is a cyclic number.

It is not a de Polignac number, because 37948646609 - 2³² = 33653679313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37948646699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654286982 + ... + 654287039.

It is an arithmetic number, because the mean of its divisors is an integer number (9814305165).

Almost surely, 2^37948646609 is an apocalyptic number.

It is an amenable number.

37948646609 is a deficient number, since it is larger than the sum of its proper divisors (1308574051).

37948646609 is a wasteful number, since it uses less digits than its factorization.

37948646609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308574050.

The product of its (nonzero) digits is 47029248, while the sum is 62.

The spelling of 37948646609 in words is "thirty-seven billion, nine hundred forty-eight million, six hundred forty-six thousand, six hundred nine".