770120202021077 has 16 divisors (see below), whose sum is σ = 821199530188800. Its totient is φ = 719686510288128.

The previous prime is 770120202021067. The next prime is 770120202021091.

770120202021077 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-770120202021077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 770120202021077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770120202021067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49768973 + ... + 63381314.

It is an arithmetic number, because the mean of its divisors is an integer number (51324970636800).

Almost surely, 2^{770120202021077} is an apocalyptic number.

It is an amenable number.

770120202021077 is a deficient number, since it is larger than the sum of its proper divisors (51079328167723).

770120202021077 is a wasteful number, since it uses less digits than its factorization.

770120202021077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113153140.

The product of its (nonzero) digits is 38416, while the sum is 38.

It can be divided in two parts, 77012020 and 2021077, that added together give a palindrome (79033097).

The spelling of 770120202021077 in words is "seven hundred seventy trillion, one hundred twenty billion, two hundred two million, twenty-one thousand, seventy-seven".