81048588351 has 8 divisors (see below), whose sum is σ = 108067572144. Its totient is φ = 54030998400.

The previous prime is 81048588337. The next prime is 81048588353. The reversal of 81048588351 is 15388584018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 81048588351 - 2¹¹ = 81048586303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 81048588294 and 81048588303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81048588353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204256 + ... + 451461.

It is an arithmetic number, because the mean of its divisors is an integer number (13508446518).

Almost surely, 2^81048588351 is an apocalyptic number.

81048588351 is a deficient number, since it is larger than the sum of its proper divisors (27018983793).

81048588351 is a wasteful number, since it uses less digits than its factorization.

81048588351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696921.

The product of its (nonzero) digits is 1228800, while the sum is 51.

The spelling of 81048588351 in words is "eighty-one billion, forty-eight million, five hundred eighty-eight thousand, three hundred fifty-one".