2139454375742 has 8 divisors (see below), whose sum is σ = 3312703549632. Its totient is φ = 1035219859200.

The previous prime is 2139454375697. The next prime is 2139454375753. The reversal of 2139454375742 is 2475734549312.

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, 17253664259 + ... + 17253664382.

It is an arithmetic number, because the mean of its divisors is an integer number (414087943704).

Almost surely, 2^{2139454375742} is an apocalyptic number.

2139454375742 is a deficient number, since it is larger than the sum of its proper divisors (1173249173890).

2139454375742 is a wasteful number, since it uses less digits than its factorization.

2139454375742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34507328674.

The product of its digits is 25401600, while the sum is 56.

The spelling of 2139454375742 in words is "two trillion, one hundred thirty-nine billion, four hundred fifty-four million, three hundred seventy-five thousand, seven hundred forty-two".