2790821259147 has 6 divisors (see below), whose sum is σ = 3721098870228. Its totient is φ = 1860545577084.

The previous prime is 2790821259143. The next prime is 2790821259179. The reversal of 2790821259147 is 7419521280972.

It is a happy number.

It is not a de Polignac number, because 2790821259147 - 2² = 2790821259143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2790821259143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2411268 + ... + 3375774.

It is an arithmetic number, because the mean of its divisors is an integer number (620183145038).

Almost surely, 2^{2790821259147} is an apocalyptic number.

2790821259147 is a deficient number, since it is larger than the sum of its proper divisors (930277611081).

2790821259147 is an frugal number, since it uses more digits than its factorization.

2790821259147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929017 (or 964510 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 57.

The spelling of 2790821259147 in words is "two trillion, seven hundred ninety billion, eight hundred twenty-one million, two hundred fifty-nine thousand, one hundred forty-seven".