2997948948481 has 4 divisors (see below), whose sum is σ = 2998096353364. Its totient is φ = 2997801543600.

The previous prime is 2997948948451. The next prime is 2997948948517. The reversal of 2997948948481 is 1848498497992.

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 1366093440000 + 1631855508481 = 1168800^2 + 1277441^2 .

It is a cyclic number.

It is not a de Polignac number, because 2997948948481 - 2³³ = 2989359013889 is a prime.

It is a super-2 number, since 2×2997948948481² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2997948948395 and 2997948948404.

It is not an unprimeable number, because it can be changed into a prime (2997948948451) 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, 73671930 + ... + 73712611.

It is an arithmetic number, because the mean of its divisors is an integer number (749524088341).

Almost surely, 2^{2997948948481} is an apocalyptic number.

It is an amenable number.

2997948948481 is a deficient number, since it is larger than the sum of its proper divisors (147404883).

2997948948481 is a wasteful number, since it uses less digits than its factorization.

2997948948481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147404882.

The product of its digits is 3009871872, while the sum is 82.

The spelling of 2997948948481 in words is "two trillion, nine hundred ninety-seven billion, nine hundred forty-eight million, nine hundred forty-eight thousand, four hundred eighty-one".