27398349542 has 32 divisors (see below), whose sum is σ = 41722103808. Its totient is φ = 13493117376.

The previous prime is 27398349481. The next prime is 27398349569. The reversal of 27398349542 is 24594389372.

It is a super-2 number, since 2×27398349542² (a number of 22 digits) contains 22 as substring.

It is a congruent 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, 19118858 + ... + 19120290.

It is an arithmetic number, because the mean of its divisors is an integer number (1303815744).

Almost surely, 2^27398349542 is an apocalyptic number.

27398349542 is a deficient number, since it is larger than the sum of its proper divisors (14323754266).

27398349542 is a wasteful number, since it uses less digits than its factorization.

27398349542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084.

The product of its digits is 13063680, while the sum is 56.

The spelling of 27398349542 in words is "twenty-seven billion, three hundred ninety-eight million, three hundred forty-nine thousand, five hundred forty-two".