37981662069097 has 4 divisors (see below), whose sum is σ = 37981674720400. Its totient is φ = 37981649417796.

The previous prime is 37981662069067. The next prime is 37981662069107. The reversal of 37981662069097 is 79096026618973.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 37981662069097 - 2¹¹ = 37981662067049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37981662069067) 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, 1024498 + ... + 8775700.

It is an arithmetic number, because the mean of its divisors is an integer number (9495418680100).

Almost surely, 2^{37981662069097} is an apocalyptic number.

It is an amenable number.

37981662069097 is a deficient number, since it is larger than the sum of its proper divisors (12651303).

37981662069097 is an equidigital number, since it uses as much as digits as its factorization.

37981662069097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12651302.

The product of its (nonzero) digits is 370355328, while the sum is 73.

The spelling of 37981662069097 in words is "thirty-seven trillion, nine hundred eighty-one billion, six hundred sixty-two million, sixty-nine thousand, ninety-seven".