27946978494 has 16 divisors (see below), whose sum is σ = 56728195968. Its totient is φ = 9176619672.

The previous prime is 27946978441. The next prime is 27946978517. The reversal of 27946978494 is 49487964972.

It is a super-3 number, since 3×27946978494³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

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, 34759522 + ... + 34760325.

It is an arithmetic number, because the mean of its divisors is an integer number (3545512248).

Almost surely, 2^27946978494 is an apocalyptic number.

27946978494 is an abundant number, since it is smaller than the sum of its proper divisors (28781217474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27946978494 is a wasteful number, since it uses less digits than its factorization.

27946978494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69519919.

The product of its digits is 219469824, while the sum is 69.

The spelling of 27946978494 in words is "twenty-seven billion, nine hundred forty-six million, nine hundred seventy-eight thousand, four hundred ninety-four".