37638531382 has 4 divisors (see below), whose sum is σ = 56457797076. Its totient is φ = 18819265690.

The previous prime is 37638531377. The next prime is 37638531391. The reversal of 37638531382 is 28313583673.

37638531382 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, and also an emirpimes, since its reverse is a distinct semiprime: 28313583673 = 2063 ⋅13724471.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9409632844 + ... + 9409632847.

It is an arithmetic number, because the mean of its divisors is an integer number (14114449269).

Almost surely, 2^37638531382 is an apocalyptic number.

37638531382 is a deficient number, since it is larger than the sum of its proper divisors (18819265694).

37638531382 is a wasteful number, since it uses less digits than its factorization.

37638531382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18819265693.

The product of its digits is 2177280, while the sum is 49.

The spelling of 37638531382 in words is "thirty-seven billion, six hundred thirty-eight million, five hundred thirty-one thousand, three hundred eighty-two".