38158790437 has 2 divisors, whose sum is σ = 38158790438. Its totient is φ = 38158790436.

The previous prime is 38158790419. The next prime is 38158790471. The reversal of 38158790437 is 73409785183.

It is a happy number.

38158790437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29286845956 + 8871944481 = 171134^2 + 94191^2 .

It is a cyclic number.

It is not a de Polignac number, because 38158790437 - 2³¹ = 36011306789 is a prime.

It is a super-2 number, since 2×38158790437² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38158790837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19079395218 + 19079395219.

It is an arithmetic number, because the mean of its divisors is an integer number (19079395219).

Almost surely, 2^38158790437 is an apocalyptic number.

It is an amenable number.

38158790437 is a deficient number, since it is larger than the sum of its proper divisors (1).

38158790437 is an equidigital number, since it uses as much as digits as its factorization.

38158790437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 38158790437 in words is "thirty-eight billion, one hundred fifty-eight million, seven hundred ninety thousand, four hundred thirty-seven".