919065026990 has 16 divisors (see below), whose sum is σ = 1804709507760. Its totient is φ = 334205464320.

The previous prime is 919065026989. The next prime is 919065027077. The reversal of 919065026990 is 99620560919.

It is a super-2 number, since 2×919065026990² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4177568195 + ... + 4177568414.

It is an arithmetic number, because the mean of its divisors is an integer number (112794344235).

Almost surely, 2^919065026990 is an apocalyptic number.

919065026990 is a deficient number, since it is larger than the sum of its proper divisors (885644480770).

919065026990 is a wasteful number, since it uses less digits than its factorization.

919065026990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8355136627.

The product of its (nonzero) digits is 2361960, while the sum is 56.

The spelling of 919065026990 in words is "nine hundred nineteen billion, sixty-five million, twenty-six thousand, nine hundred ninety".