7042121444691 has 48 divisors (see below), whose sum is σ = 10794716270208. Its totient is φ = 4408574688000.

The previous prime is 7042121444629. The next prime is 7042121444693. The reversal of 7042121444691 is 1964441212407.

7042121444691 is a `hidden beast` number, since 7 + 0 + 42 + 1 + 2 + 144 + 469 + 1 = 666.

It is not a de Polignac number, because 7042121444691 - 2¹⁰ = 7042121443667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7042121444693) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 455763516 + ... + 455778966.

It is an arithmetic number, because the mean of its divisors is an integer number (224889922296).

Almost surely, 2^{7042121444691} is an apocalyptic number.

7042121444691 is a deficient number, since it is larger than the sum of its proper divisors (3752594825517).

7042121444691 is a wasteful number, since it uses less digits than its factorization.

7042121444691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22032 (or 22029 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 7042121444691 in words is "seven trillion, forty-two billion, one hundred twenty-one million, four hundred forty-four thousand, six hundred ninety-one".