37897699009 has 2 divisors, whose sum is σ = 37897699010. Its totient is φ = 37897699008.

The previous prime is 37897698973. The next prime is 37897699057. The reversal of 37897699009 is 90099679873.

37897699009 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., 37766092225 + 131606784 = 194335^2 + 11472^2 .

It is a cyclic number.

It is not a de Polignac number, because 37897699009 - 2¹¹ = 37897696961 is a prime.

It is not a weakly prime, because it can be changed into another prime (37897699109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18948849504 + 18948849505.

It is an arithmetic number, because the mean of its divisors is an integer number (18948849505).

Almost surely, 2^37897699009 is an apocalyptic number.

It is an amenable number.

37897699009 is a deficient number, since it is larger than the sum of its proper divisors (1).

37897699009 is an equidigital number, since it uses as much as digits as its factorization.

37897699009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46294416, while the sum is 67.

The spelling of 37897699009 in words is "thirty-seven billion, eight hundred ninety-seven million, six hundred ninety-nine thousand, nine".