851021164448763 has 64 divisors (see below), whose sum is σ = 1469040939684864. Its totient is φ = 425397954816000.

The previous prime is 851021164448759. The next prime is 851021164448797. The reversal of 851021164448763 is 367844461120158.

It is a happy number.

It is not a de Polignac number, because 851021164448763 - 2² = 851021164448759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 851021164448697 and 851021164448706.

It is not an unprimeable number, because it can be changed into a prime (851021164448713) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 614757048 + ... + 616139813.

It is an arithmetic number, because the mean of its divisors is an integer number (22953764682576).

Almost surely, 2^{851021164448763} is an apocalyptic number.

851021164448763 is a deficient number, since it is larger than the sum of its proper divisors (618019775236101).

851021164448763 is a wasteful number, since it uses less digits than its factorization.

851021164448763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230896996.

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 851021164448763 in words is "eight hundred fifty-one trillion, twenty-one billion, one hundred sixty-four million, four hundred forty-eight thousand, seven hundred sixty-three".