920911754057 has 2 divisors, whose sum is σ = 920911754058. Its totient is φ = 920911754056.

The previous prime is 920911754027. The next prime is 920911754089. The reversal of 920911754057 is 750457119029.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 676894525696 + 244017228361 = 822736^2 + 493981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920911754057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 920911753996 and 920911754014.

It is not a weakly prime, because it can be changed into another prime (920911754027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460455877028 + 460455877029.

It is an arithmetic number, because the mean of its divisors is an integer number (460455877029).

Almost surely, 2^920911754057 is an apocalyptic number.

It is an amenable number.

920911754057 is a deficient number, since it is larger than the sum of its proper divisors (1).

920911754057 is an equidigital number, since it uses as much as digits as its factorization.

920911754057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 793800, while the sum is 50.

The spelling of 920911754057 in words is "nine hundred twenty billion, nine hundred eleven million, seven hundred fifty-four thousand, fifty-seven".