20027497834 has 16 divisors (see below), whose sum is σ = 30098248128. Its totient is φ = 9994767552.

The previous prime is 20027497793. The next prime is 20027497843. The reversal of 20027497834 is 43879472002.

It is a super-3 number, since 3×20027497834³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2834434 + ... + 2841490.

It is an arithmetic number, because the mean of its divisors is an integer number (1881140508).

Almost surely, 2^20027497834 is an apocalyptic number.

20027497834 is a deficient number, since it is larger than the sum of its proper divisors (10070750294).

20027497834 is a wasteful number, since it uses less digits than its factorization.

20027497834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9549.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 20027497834 in words is "twenty billion, twenty-seven million, four hundred ninety-seven thousand, eight hundred thirty-four".