7474047439121 has 4 divisors (see below), whose sum is σ = 7474647439332. Its totient is φ = 7473447438912.

The previous prime is 7474047439091. The next prime is 7474047439123. The reversal of 7474047439121 is 1219347404747.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3758266890625 + 3715780548496 = 1938625^2 + 1927636^2 .

It is a cyclic number.

It is not a de Polignac number, because 7474047439121 - 2³⁰ = 7472973697297 is a prime.

It is a super-2 number, since 2×7474047439121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7474047439123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299981420 + ... + 300006333.

It is an arithmetic number, because the mean of its divisors is an integer number (1868661859833).

Almost surely, 2^{7474047439121} is an apocalyptic number.

It is an amenable number.

7474047439121 is a deficient number, since it is larger than the sum of its proper divisors (600000211).

7474047439121 is a wasteful number, since it uses less digits than its factorization.

7474047439121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600000210.

The product of its (nonzero) digits is 4741632, while the sum is 53.

The spelling of 7474047439121 in words is "seven trillion, four hundred seventy-four billion, forty-seven million, four hundred thirty-nine thousand, one hundred twenty-one".