906719785801 has 2 divisors, whose sum is σ = 906719785802. Its totient is φ = 906719785800.

The previous prime is 906719785793. The next prime is 906719785823. The reversal of 906719785801 is 108587917609.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 544437379600 + 362282406201 = 737860^2 + 601899^2 .

It is a cyclic number.

It is not a de Polignac number, because 906719785801 - 2³ = 906719785793 is a prime.

It is a super-2 number, since 2×906719785801² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 906719785801.

It is not a weakly prime, because it can be changed into another prime (906719785831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 453359892900 + 453359892901.

It is an arithmetic number, because the mean of its divisors is an integer number (453359892901).

Almost surely, 2^906719785801 is an apocalyptic number.

It is an amenable number.

906719785801 is a deficient number, since it is larger than the sum of its proper divisors (1).

906719785801 is an equidigital number, since it uses as much as digits as its factorization.

906719785801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 61.

The spelling of 906719785801 in words is "nine hundred six billion, seven hundred nineteen million, seven hundred eighty-five thousand, eight hundred one".