900021264767 has 2 divisors, whose sum is σ = 900021264768. Its totient is φ = 900021264766.

The previous prime is 900021264719. The next prime is 900021264773. The reversal of 900021264767 is 767462120009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 900021264767 - 2⁸ = 900021264511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900021264167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450010632383 + 450010632384.

It is an arithmetic number, because the mean of its divisors is an integer number (450010632384).

Almost surely, 2^900021264767 is an apocalyptic number.

900021264767 is a deficient number, since it is larger than the sum of its proper divisors (1).

900021264767 is an equidigital number, since it uses as much as digits as its factorization.

900021264767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 900021264767 in words is "nine hundred billion, twenty-one million, two hundred sixty-four thousand, seven hundred sixty-seven".