38421851072951 has 2 divisors, whose sum is σ = 38421851072952. Its totient is φ = 38421851072950.

The previous prime is 38421851072911. The next prime is 38421851072963. The reversal of 38421851072951 is 15927015812483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38421851072951 - 2⁴² = 34023804561847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38421851072911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19210925536475 + 19210925536476.

It is an arithmetic number, because the mean of its divisors is an integer number (19210925536476).

Almost surely, 2^{38421851072951} is an apocalyptic number.

38421851072951 is a deficient number, since it is larger than the sum of its proper divisors (1).

38421851072951 is an equidigital number, since it uses as much as digits as its factorization.

38421851072951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 56.

The spelling of 38421851072951 in words is "thirty-eight trillion, four hundred twenty-one billion, eight hundred fifty-one million, seventy-two thousand, nine hundred fifty-one".