2069139494 has 8 divisors (see below), whose sum is σ = 3103903920. Its totient is φ = 1034504856.

The previous prime is 2069139469. The next prime is 2069139503. The reversal of 2069139494 is 4949319602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38012 + ... + 74720.

It is an arithmetic number, because the mean of its divisors is an integer number (387987990).

Almost surely, 2^2069139494 is an apocalyptic number.

2069139494 is a deficient number, since it is larger than the sum of its proper divisors (1034764426).

2069139494 is a wasteful number, since it uses less digits than its factorization.

2069139494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64894.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 2069139494 is about 45487.7950004174. The cubic root of 2069139494 is about 1274.2752757440.

The spelling of 2069139494 in words is "two billion, sixty-nine million, one hundred thirty-nine thousand, four hundred ninety-four".