8400786122051 has 2 divisors, whose sum is σ = 8400786122052. Its totient is φ = 8400786122050.

The previous prime is 8400786122023. The next prime is 8400786122083. The reversal of 8400786122051 is 1502216870048.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8400786122051 - 2¹⁴ = 8400786105667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8400786121993 and 8400786122011.

It is not a weakly prime, because it can be changed into another prime (8400786122021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4200393061025 + 4200393061026.

It is an arithmetic number, because the mean of its divisors is an integer number (4200393061026).

Almost surely, 2^{8400786122051} is an apocalyptic number.

8400786122051 is a deficient number, since it is larger than the sum of its proper divisors (1).

8400786122051 is an equidigital number, since it uses as much as digits as its factorization.

8400786122051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 8400786122051 in words is "eight trillion, four hundred billion, seven hundred eighty-six million, one hundred twenty-two thousand, fifty-one".