37920272723 has 2 divisors, whose sum is σ = 37920272724. Its totient is φ = 37920272722.

The previous prime is 37920272717. The next prime is 37920272729. The reversal of 37920272723 is 32727202973.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (37920272717) and next prime (37920272729).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37920272723 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (37920272729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18960136361 + 18960136362.

It is an arithmetic number, because the mean of its divisors is an integer number (18960136362).

Almost surely, 2^37920272723 is an apocalyptic number.

37920272723 is a deficient number, since it is larger than the sum of its proper divisors (1).

37920272723 is an equidigital number, since it uses as much as digits as its factorization.

37920272723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 44.

The spelling of 37920272723 in words is "thirty-seven billion, nine hundred twenty million, two hundred seventy-two thousand, seven hundred twenty-three".