920387767841 has 2 divisors, whose sum is σ = 920387767842. Its totient is φ = 920387767840.

The previous prime is 920387767807. The next prime is 920387767891. The reversal of 920387767841 is 148767783029.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 854739079441 + 65648688400 = 924521^2 + 256220^2 .

It is a cyclic number.

It is not a de Polignac number, because 920387767841 - 2³⁰ = 919314026017 is a prime.

It is a super-2 number, since 2×920387767841² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (920387767891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460193883920 + 460193883921.

It is an arithmetic number, because the mean of its divisors is an integer number (460193883921).

Almost surely, 2^920387767841 is an apocalyptic number.

It is an amenable number.

920387767841 is a deficient number, since it is larger than the sum of its proper divisors (1).

920387767841 is an equidigital number, since it uses as much as digits as its factorization.

920387767841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28449792, while the sum is 62.

The spelling of 920387767841 in words is "nine hundred twenty billion, three hundred eighty-seven million, seven hundred sixty-seven thousand, eight hundred forty-one".