690451330634 has 32 divisors (see below), whose sum is σ = 1137462661440. Its totient is φ = 312380969472.

The previous prime is 690451330579. The next prime is 690451330643. The reversal of 690451330634 is 436033154096.

It is a super-2 number, since 2×690451330634² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96032 + ... + 1179035.

It is an arithmetic number, because the mean of its divisors is an integer number (35545708170).

Almost surely, 2^690451330634 is an apocalyptic number.

690451330634 is a deficient number, since it is larger than the sum of its proper divisors (447011330806).

690451330634 is a wasteful number, since it uses less digits than its factorization.

690451330634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275494.

The product of its (nonzero) digits is 699840, while the sum is 44.

The spelling of 690451330634 in words is "six hundred ninety billion, four hundred fifty-one million, three hundred thirty thousand, six hundred thirty-four".