38146972651 has 2 divisors, whose sum is σ = 38146972652. Its totient is φ = 38146972650.

The previous prime is 38146972649. The next prime is 38146972691. The reversal of 38146972651 is 15627964183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38146972651 - 2¹ = 38146972649 is a prime.

It is a super-2 number, since 2×38146972651² (a number of 22 digits) contains 22 as substring.

Together with 38146972649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (38146972691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19073486325 + 19073486326.

It is an arithmetic number, because the mean of its divisors is an integer number (19073486326).

Almost surely, 2^38146972651 is an apocalyptic number.

38146972651 is a deficient number, since it is larger than the sum of its proper divisors (1).

38146972651 is an equidigital number, since it uses as much as digits as its factorization.

38146972651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 52.

The spelling of 38146972651 in words is "thirty-eight billion, one hundred forty-six million, nine hundred seventy-two thousand, six hundred fifty-one".