690794496970 has 32 divisors (see below), whose sum is σ = 1316703373200. Its totient is φ = 260038066176.

The previous prime is 690794496961. The next prime is 690794496989. The reversal of 690794496970 is 79694497096.

It can be written as a sum of positive squares in 8 ways, for example, as 139519431529 + 551275065441 = 373523^2 + 742479^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 690794496970.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1566786 + ... + 1958674.

Almost surely, 2^690794496970 is an apocalyptic number.

690794496970 is a deficient number, since it is larger than the sum of its proper divisors (625908876230).

690794496970 is a wasteful number, since it uses less digits than its factorization.

690794496970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402282.

The product of its (nonzero) digits is 185177664, while the sum is 70.

The spelling of 690794496970 in words is "six hundred ninety billion, seven hundred ninety-four million, four hundred ninety-six thousand, nine hundred seventy".