37782792643 has 2 divisors, whose sum is σ = 37782792644. Its totient is φ = 37782792642.

The previous prime is 37782792631. The next prime is 37782792647. The reversal of 37782792643 is 34629728773.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37782792643 is a prime.

It is not a weakly prime, because it can be changed into another prime (37782792647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18891396321 + 18891396322.

It is an arithmetic number, because the mean of its divisors is an integer number (18891396322).

Almost surely, 2^37782792643 is an apocalyptic number.

37782792643 is a deficient number, since it is larger than the sum of its proper divisors (1).

37782792643 is an equidigital number, since it uses as much as digits as its factorization.

37782792643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21337344, while the sum is 58.

The spelling of 37782792643 in words is "thirty-seven billion, seven hundred eighty-two million, seven hundred ninety-two thousand, six hundred forty-three".