906690505051 has 4 divisors (see below), whose sum is σ = 906789271504. Its totient is φ = 906591738600.

The previous prime is 906690505003. The next prime is 906690505069. The reversal of 906690505051 is 150505096609.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 906690505051 - 2⁹ = 906690504539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 906690504992 and 906690505010.

It is not an unprimeable number, because it can be changed into a prime (906690505951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49369455 + ... + 49387816.

It is an arithmetic number, because the mean of its divisors is an integer number (226697317876).

Almost surely, 2^906690505051 is an apocalyptic number.

906690505051 is a deficient number, since it is larger than the sum of its proper divisors (98766453).

906690505051 is an equidigital number, since it uses as much as digits as its factorization.

906690505051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98766452.

The product of its (nonzero) digits is 364500, while the sum is 46.

The spelling of 906690505051 in words is "nine hundred six billion, six hundred ninety million, five hundred five thousand, fifty-one".