690898553834 has 32 divisors (see below), whose sum is σ = 1147627388160. Its totient is φ = 310284133632.

The previous prime is 690898553773. The next prime is 690898553843. The reversal of 690898553834 is 438355898096.

690898553834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 662969 + ... + 1349564.

It is an arithmetic number, because the mean of its divisors is an integer number (35863355880).

Almost surely, 2^690898553834 is an apocalyptic number.

690898553834 is a deficient number, since it is larger than the sum of its proper divisors (456728834326).

690898553834 is a wasteful number, since it uses less digits than its factorization.

690898553834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013014.

The product of its (nonzero) digits is 223948800, while the sum is 68.

The spelling of 690898553834 in words is "six hundred ninety billion, eight hundred ninety-eight million, five hundred fifty-three thousand, eight hundred thirty-four".