912620422381 has 2 divisors, whose sum is σ = 912620422382. Its totient is φ = 912620422380.

The previous prime is 912620422283. The next prime is 912620422393. The reversal of 912620422381 is 183224026219.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 524995888356 + 387624534025 = 724566^2 + 622595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-912620422381 is a prime.

It is a super-2 number, since 2×912620422381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (912620429381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456310211190 + 456310211191.

It is an arithmetic number, because the mean of its divisors is an integer number (456310211191).

Almost surely, 2^912620422381 is an apocalyptic number.

It is an amenable number.

912620422381 is a deficient number, since it is larger than the sum of its proper divisors (1).

912620422381 is an equidigital number, since it uses as much as digits as its factorization.

912620422381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 912620422381 in words is "nine hundred twelve billion, six hundred twenty million, four hundred twenty-two thousand, three hundred eighty-one".