2990156848849 has 3 divisors (see below), whose sum is σ = 2990158578057. Its totient is φ = 2990155119642.

The previous prime is 2990156848843. The next prime is 2990156848871. The reversal of 2990156848849 is 9488486510992.

The square root of 2990156848849 is 1729207.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2990156848849 - 2³ = 2990156848841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2990156848841) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 864604 + ... + 2593810.

It is an arithmetic number, because the mean of its divisors is an integer number (996719526019).

Almost surely, 2^{2990156848849} is an apocalyptic number.

2990156848849 is the 1729207-th square number.

2990156848849 is the 864604-th centered octagonal number.

It is an amenable number.

2990156848849 is a deficient number, since it is larger than the sum of its proper divisors (1729208).

2990156848849 is an frugal number, since it uses more digits than its factorization.

2990156848849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458414 (or 1729207 counting only the distinct ones).

The product of its (nonzero) digits is 358318080, while the sum is 73.

The spelling of 2990156848849 in words is "two trillion, nine hundred ninety billion, one hundred fifty-six million, eight hundred forty-eight thousand, eight hundred forty-nine".