7840918214042 has 8 divisors (see below), whose sum is σ = 11761391032500. Its totient is φ = 3920454536544.

The previous prime is 7840918213969. The next prime is 7840918214099. The reversal of 7840918214042 is 2404128190487.

It can be written as a sum of positive squares in 2 ways, for example, as 7436207217481 + 404710996561 = 2726941^2 + 636169^2 .

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

It is a super-2 number, since 2×7840918214042² (a number of 27 digits) contains 22 as substring.

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, 575384 + ... + 4001612.

Almost surely, 2^{7840918214042} is an apocalyptic number.

7840918214042 is a deficient number, since it is larger than the sum of its proper divisors (3920472818458).

7840918214042 is a wasteful number, since it uses less digits than its factorization.

7840918214042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570480.

The product of its (nonzero) digits is 1032192, while the sum is 50.

The spelling of 7840918214042 in words is "seven trillion, eight hundred forty billion, nine hundred eighteen million, two hundred fourteen thousand, forty-two".