690621770419 has 16 divisors (see below), whose sum is σ = 800879201280. Its totient is φ = 583273645920.

The previous prime is 690621770393. The next prime is 690621770429. The reversal of 690621770419 is 914077126096.

It is not a de Polignac number, because 690621770419 - 2⁹ = 690621769907 is a prime.

It is a super-2 number, since 2×690621770419² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690621770429) by changing a digit.

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, 413202 + ... + 1245784.

It is an arithmetic number, because the mean of its divisors is an integer number (50054950080).

Almost surely, 2^690621770419 is an apocalyptic number.

690621770419 is a deficient number, since it is larger than the sum of its proper divisors (110257430861).

690621770419 is a wasteful number, since it uses less digits than its factorization.

690621770419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834330.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 690621770419 in words is "six hundred ninety billion, six hundred twenty-one million, seven hundred seventy thousand, four hundred nineteen".