820951101463 has 4 divisors (see below), whose sum is σ = 822958317280. Its totient is φ = 818943885648.

The previous prime is 820951101457. The next prime is 820951101469. The reversal of 820951101463 is 364101159028.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (820951101457) and next prime (820951101469).

It is a cyclic number.

It is not a de Polignac number, because 820951101463 - 2²¹ = 820949004311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820951101469) 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 3 ways as a sum of consecutive naturals, for example, 1003607295 + ... + 1003608112.

It is an arithmetic number, because the mean of its divisors is an integer number (205739579320).

Almost surely, 2^820951101463 is an apocalyptic number.

820951101463 is a deficient number, since it is larger than the sum of its proper divisors (2007215817).

820951101463 is a wasteful number, since it uses less digits than its factorization.

820951101463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007215816.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 820951101463 in words is "eight hundred twenty billion, nine hundred fifty-one million, one hundred one thousand, four hundred sixty-three".