690643134719 has 8 divisors (see below), whose sum is σ = 699823517760. Its totient is φ = 681473703456.

The previous prime is 690643134691. The next prime is 690643134757. The reversal of 690643134719 is 917431346096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 690643134719 - 2⁸ = 690643134463 is a prime.

It is a super-2 number, since 2×690643134719² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690643134799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2610944 + ... + 2863269.

It is an arithmetic number, because the mean of its divisors is an integer number (87477939720).

Almost surely, 2^690643134719 is an apocalyptic number.

690643134719 is a deficient number, since it is larger than the sum of its proper divisors (9180383041).

690643134719 is a wasteful number, since it uses less digits than its factorization.

690643134719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475889.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 690643134719 in words is "six hundred ninety billion, six hundred forty-three million, one hundred thirty-four thousand, seven hundred nineteen".