38974953751 has 2 divisors, whose sum is σ = 38974953752. Its totient is φ = 38974953750.

The previous prime is 38974953733. The next prime is 38974953757. The reversal of 38974953751 is 15735947983.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38974953751 - 2¹⁹ = 38974429463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38974953751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38974953757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19487476875 + 19487476876.

It is an arithmetic number, because the mean of its divisors is an integer number (19487476876).

Almost surely, 2^38974953751 is an apocalyptic number.

38974953751 is a deficient number, since it is larger than the sum of its proper divisors (1).

38974953751 is an equidigital number, since it uses as much as digits as its factorization.

38974953751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28576800, while the sum is 61.

The spelling of 38974953751 in words is "thirty-eight billion, nine hundred seventy-four million, nine hundred fifty-three thousand, seven hundred fifty-one".