81014806151 has 2 divisors, whose sum is σ = 81014806152. Its totient is φ = 81014806150.

The previous prime is 81014806123. The next prime is 81014806183. The reversal of 81014806151 is 15160841018.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 81014806151 - 2²⁶ = 80947697287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (81014806451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40507403075 + 40507403076.

It is an arithmetic number, because the mean of its divisors is an integer number (40507403076).

Almost surely, 2^81014806151 is an apocalyptic number.

81014806151 is a deficient number, since it is larger than the sum of its proper divisors (1).

81014806151 is an equidigital number, since it uses as much as digits as its factorization.

81014806151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 35.

The spelling of 81014806151 in words is "eighty-one billion, fourteen million, eight hundred six thousand, one hundred fifty-one".